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How to Cite a Dissertation in Harvard Style

Published by Alaxendra Bets at August 27th, 2021 , Revised On September 25, 2023

What is a Dissertation?

In the UK, countries of Western Europe, as well as New Zealand and Australia, the term ‘ dissertation ’ is used instead of a ‘thesis.’ The majority of the remaining countries in the world prefer to use ‘thesis’ instead of ‘dissertation.’

Both represent the same thing, though: a full-length, academic piece of writing that students must submit after their undergraduate, post-graduate (Master), or PhD studies.

More specifically, a dissertation can refer to:

• Large-scale research as part of a degree.
• An article based on a small-scale study as part of a degree.
• A review of another study, research or an accumulation of both.
• Other full-length body texts are a requirement of the student’s degree program, no matter which level it is.

1.    Basic Format

In Harvard, the following in-text citation format is used for the dissertation:

(Author Surname, Year Published)

For example, ‘Occasionally the talent for drawing passes beyond mere picture-copying and shows the presence of a real artistic capacity of no mean order. (Darius, 2014)’

In Harvard, the following reference list entry format is used for the dissertation:

Author Surname, Author Initials. (Year Published). Title of the dissertation in italics. Level. Institution Name.

For example, reference list entry for the above source would be:

Darius, H. (2014). Running head: SAVANT SYNDROME – THEORIES AND EMPIRICAL FINDINGS . University of Skövde, University of Turku.

However, a slightly different format is also used in some institutions. According to that, in-text citations are done in the following way:

Author surname Year, p.#

For instance, Exelby (1997, p. 3) described the process … OR … processing gold (Exelby 1997, p. 3).

But in the case of reference list entries, these ‘other’ institutions recommend naming the dissertation title not in italics but in single quotation marks. The format would then be:

Author Surname, Initials Year of Publication, ‘Title of thesis in single quotation marks’, Award, Institution issuing degree, Location of the institution.

So, according to this format, the above example’s reference list entry would be:

Exelby, HRA 1997, ‘Aspects of Gold and Mineral Liberation’, PhD thesis, University of Queensland, Brisbane, Qld.

Whichever format is followed largely depends on one’s institutional guidelines. The format specified by the university is the one that should be followed. Furthermore, it should be followed consistently throughout a manuscript.

2.    Citing a Dissertation Published Online

The format for both in-text and reference list entries is the same for online and print dissertations. For example:

• In-text citation: (Ram 2012) OR (Ram 2011, p. 130)
• Reference list entry: Ram, R 2012, ‘Development of the International Financial Reporting Standard for Small and Medium-sized Entities’, PhD thesis, The University of Sydney, viewed 23 May 2014, <http://hdl.handle.net/2123/8208>.

An important point to note: While referencing dissertations published online, the URL may or may not be enclosed within < > symbols. Whichever format is chosen, it should be used consistently throughout the text.

3.    Citing an Unpublished Dissertation

This type of dissertation also uses the same formatting for in-text and reference list entries in Harvard style. For example:

• In-text citation: (Sakunasingha 2006) OR (Sakunasingha 2006, p. 36)
• Reference list entry: Sakunasingha, B 2006, ‘An empirical study into factors influencing the use of value-based management tools’, DBA thesis, Southern Cross University, Lismore, NSW.

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Frequently Asked Questions

How do i cite my dissertation.

To cite your dissertation, follow your chosen citation style (e.g., APA, MLA). Generally, include author name, year, title, and source details. For APA: Author. (Year). Title. Source. For MLA: Author. “Title.” Degree, University, Year.

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Home / Guides / Citation Guides / Harvard Referencing

Harvard Referencing Style Guide

What is referencing.

Whenever you write, the writings of others will influence your work. Although it is difficult to gauge all the influences, many of your ideas can be traced back to the resources and materials that you have consulted. These might be books, images , articles, reports, or, of course, the internet. These sources help enrich your writing by giving you ideas to build on. It is important always to give credit to the original thinkers and authors.

Referencing is the method that gives credit to the sources you have used in your work. You should provide references whenever you use a direct quote, paraphrase someone else’s idea, or borrow conceptual words and phrases.

Referencing not only allows credit to be given where credit is due, but it also helps track the various influences on any original piece of writing. If you do not cite the sources of the ideas that you have used in your work, you run the risk of plagiarism. Plagiarism is not only unethical but is also an actual crime in some of its forms. But how do you reference?

Elements of Harvard referencing style

Harvard referencing is a popular method of adding citations to your work. Its appeal lies in the simplicity of the basic system it uses – the author-date structure. Along with this, in Harvard style, you only need to mention the source in two locations: in the in-text reference(s) and in the reference list. Both elements together incorporate all the necessary details about a source in the most efficient way.

So, while reading something, when you come across a citation that looks something like this:

Furley (1999) or (Furley, 1999)

it is an in-text reference that follows the author-date system.

This is an entry in the reference list for the same in-text reference.

Furley, D. (1999) Routledge history of philosophy volume II: from Aristotle to Augustine . 1st edn. London: Routledge.

These Harvard referencing examples provide details about the citation formats for different types of sources.

In-text reference/citation

As is obvious from the name, Harvard in-text citations are references included within the text, that is, inside the sentences that make up its content. These can either be direct statements or quotes, or a paraphrasing of the original work. This type of reference helps in precisely pointing out which portions of the text are borrowed from or influenced by which particular source.

In his work, Furley (1999) wrote about… OR …from Aristotle’s works (Furley, 1999).

As you can see, in-text references provide the author’s surname and the year of publication. The year is provided because sometimes two or more works by the same author are referenced. In this case, the year helps in distinguishing between these works. Note that if you are citing a direct quotation, the in-text citation should also include the page number of that quote, for example (Furley, 1999, p. 2).

However, in-text citations don’t provide other important details about these resources. Rather, they are short enough that you don’t get interrupted while reading the text. Other details are presented in the reference list that you include at the end of your paper.

Reference list

A reference list presents the details of all the resources cited throughout the text in the form of a list at the end of your paper. It includes detailed entries about each of the referenced sources.

Citation structure:

Surname, Initial. (Publication year) Name of the document . Place of publication: Publisher.

Every in-text citation corresponds to an entry in the reference list. So, the reference list entry for the in-text citations discussed above would be:

Einstein, M. (2004) Media diversity: economics, ownership, and the FCC. New Jersey: Routledge.

This entry can also include other details like page numbers, editor’s name, edition, URL, access date, etc., depending upon the type of resource. A reference list allows you to provide all the necessary information without crowding your paper. With this list, you can keep track of how many materials you have consulted and even see if you need to include any more or any other kind of references in your text.

The difference between a bibliography and the Harvard referencing system

Typically, you’ll refer to multiple sources and materials for writing a text, and just using a bibliography can be confusing. You can use the Harvard referencing system to point out the exact location of all your references.

By marking the in-text reference, you can easily locate which idea or quote corresponds to which author. This makes your work easy to read and understand. This way, you and your reader can easily trace the specific portions of the work back to the original texts.

You can also show how much of your text uses source material (whether directly or indirectly) and how much of it is your own ideas and thoughts.

Format for Harvard Referencing

Typically, a paper that uses Harvard referencing has the following format:

• 2.5 cm OR 1-inch margins on all sides
• Recommended fonts: Arial 12 pt or Times New Roman, with double-spacing
• Title is in the center of the page just above the text
• Left-aligned text, with the first sentence of every paragraph indented by 0.5 inch
• Last name is at the top-right corner of the header, followed by page number
• Title page is centre-aligned
• Subheadings are in sentence case and left-aligned

Key takeaways

• Referencing is a way of crediting the various resources consulted while writing a text. Harvard referencing is a system that allows you to include information about the source materials. It is based on the author-date system.
• It includes references: 1) as in-text citations and 2) in a reference list (which is different from a bibliography).
• In-text citations: (Author Surname, Year Published).
• Reference list entry: Author Surname, Initial. (Year Published) Title . Place of Publication: Name of Publisher.

For more help creating citations in Harvard style, try the EasyBib Harvard referencing generator !

Published October 25, 2020.

Harvard Formatting Guide

Harvard Formatting

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Referencing Styles: Harvard

(also called author / date).

This guide will look at how you would reference using the Harvard citation style.

In-Text Citing

In addition to formatted references, you need to cite the author of the source in text whenever you refer to their work, or ideas. This is known as in-text citing. 

Harvard in-text citation requires that you cite in brackets the name of the creator of the work, and the date of publication.

In-Text Example 1: when the authors name forms part of the sentence:

Brown (2013) states that the key …….

In-Text Example 2: when the source is attributed but the authors name does not form part of the sentence:

Extensive research (Brown, 2013) indicates that…..

In-Text Example 3: when citing a direct quote you must include page numbers:

The possibility has been said to be “beyond the limits of our society’s understanding” (Brown, 2013, p.23).

In-Text Example 4: when citing the same article or book as the previous citation, you can (if you want) use 'ibid.', and if the page number is different include it:

... according to Brown (ibid., p.24). 

You must provide a list of the references that you have cited, formatted in the Harvard style, and in alphabetical order by author, in a bibliography at the end of your work. We will now look at how you would format your references in the bibliography.

Formatting references in the bibliography

Books .

Format: Author surname, Initial. (Year). Title . Edition if not the 1st. Place of publication: Publisher.

• Example: Bassey, M. (1999). Case study research in educational settings . 2nd ed. London: Open University Press.

Books with two or three authors

• Example: Bloor, M., Wood, F. (2006). Keywords in Qualitative Methods: a vocabulary of research concepts . London: Sage Publications.

Books with more than three authors – give the name of the first author, followed by ‘et al.’ (which means 'and others').

• Example: Rice, R. et al. (2001). Accessing and browsing: information and communication . Cambridge: MIT Press. 

Journal Articles

Format: Author surname, Initial. (Year) Title of article. Title of journal , Vol. no. (Part no./Issue/Month), Pages, use p. or pp.

• Example: Ball, R. (2003) Libraries and distance education – a German view. Libri , 53(2), pp.71-81

Format: Author surname, Initial. (Year) Title of document [Online] Organisation responsible (optional). Available from: web address [Accessed date].

• Example: Castles, S. (2004), Confronting the Realities of Forced Migration  [Online] Migration Policy Institute. Available from: http://www.migrationpolicy.org/article/confronting-realities-forced-migration [18 September 2018].

Thesis or Dissertation

Format: Author surname, Initial. (Year). Title . Designation (Level, e.g. MSc, PhD.), Institution.

• Example: Rajaram, P.K. (2002). Exile and desire: Refugees, aesthetics and the territorial borders of international relations . Unpublished thesis (PhD.), London School of Economics and Political Science.

Newspaper Articles

Format: Author surname, Initial. (Year) Article title. Newspaper title , Day and Month (abbreviated), Pages, use p. or pp. (if no page number e.g. an online newspaper state the date accessed).

• Example: Crosbie, J. (2013) More refugees in 2012 than for 20 years, says UN. Irish Times , 19 June, p. 11

Variations of Harvard

There is no single definitive way to use the Harvard referencing style. If you use Summon or RefWorks to convert items into Harvard (our  reference management software page  explains how to do this), you'll notice that the format is slightly different to the guidance on this page. Remember that what is important is that:

• You have referenced each time you have referred to someone else's work
• You have included all of the relevant information in your reference
• That information is in the right order
• All of your references are formatted consistently

Follow any guidance given on your VLE. If you have any concerns, contact your tutor or student relationship manager.

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Harvard Style Guide: Theses

• Introduction
• Harvard Tutorial
• In-text citations
• Book with one author
• Book with two or three authors
• Book with four or more authors
• Book with a corporate author
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• Images or photographs
• Lectures/ presentations
• Film/ television
• YouTube Film or Talk
• Music/ audio
• Encyclopaedia and dictionaries
• Email communication
• Conferences
• Official publications
• Book reviews
• Case studies
• Group or individual assignments
• Legal Cases (Law Reports)
• No date of publication
• Personal communications
• Repository item
• Citing same author, multiple works, same year

Back to Academic Integrity guide

Reference : Author, Initial. (Year of submission) Title of thesis . Degree statement. Degree-awarding body.         

Example : Allen, S. J. (2009) The social and moral fibre of Celtic Tiger Ireland . Unpublished PhD thesis. University College Dublin.

In-Text-Citation :

• Author Last name (Year)
• (Author Last name, Year)
• Allen (2009) disagrees with this…..
• As argued elsewhere (Allen, 2009)….

Still unsure what in-text citation and referencing mean? Check here . 

Still unsure why you need to reference all this information? Check here . 

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• Last Updated: Mar 22, 2024 9:51 AM
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Harvard referencing style

• In-text citations and reference list
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Thesis or dissertation

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Harvard Citation Style: Theses

Introduction

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Company Information

Conference Proceedings

• Internet / Websites

Journal Articles

Lecture Notes

• Multi-Media Formats
• Patents and Standards

All Examples

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In This Guide...

Click on the links below for further information on referencing each material type

• Why is Referencing Important?
• Getting Started

Reference Formats

• References by Format
• Citing Info Someone Else has Cited

Books/eBooks

• 1, 2 or More Authors
• 1, 2 or More Editors
• Chapters in Books
• Company Reports
• Company Profiles

Internet/Websites

• Web Documents
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Multimedia Formats

• Audio-Visual Material

Newspaper Articles

Patents & Standards

• Citing Patents: Examples
• Citing Patents: Standards

Citing Theses: Examples

• A table of examples in all formats for quick reference

Citing Theses

Theses can come in a number for formats, they can be published, unpublished, or retrieved from a database. The principles when citing a thesis are similar to those employed when citing a book.

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Dissertation (thesis): how to cite in Harvard style?

Create a spot-on reference in harvard, general rules.

According to the Harvard citation style, the same template is used for referencing a master's thesis and a doctoral dissertation in a list of bibliographic references:

Author , ( year ).  Title . Work type , University .

NB: Fill in the 'Work type' field the type of work and the academic grade, for instance, 'Ph.D. thesis'.

If the text of the work can be accessed online, use the following template for your reference:

Author , ( year ). Title . Work type , University . [Viewed date viewed ]. Available from: URL

NB: The text '[online]' is not given after the title of the work, in contrast to the references to a book , a journal article , etc.

Examples in a list of references

Middleton,   H.   J., (2020). *ABA syncretism patterns in pronominal morphology . Ph.D. thesis, University College London. [Viewed 12 January 2021]. Available from: https://discovery.ucl.ac.uk/id/eprint/10105591/

Reed,   B.   H., (1992). The genetic analysis of endoreduplication in Drosophila melanogaster. Ph.D. thesis, University of Cambridge.

Other citation styles:

• What is APA Style (7th ed.)?
• Examples of bibliographic references in APA (7th ed.)
• APA 7 vs APA 6: key differences
• How to cite authors?
• How to format the references page with APA (7th ed.)?
• In-text citations
• Archival document
• Book chapter
• Conference paper
• Dictionary/encyclopedia/dictionary entry/encyclopedia article
• Dissertation (thesis)
• Journal article
• Newspaper article
• Press release
• Religious text
• Social media post
• Software / mobile app
• Video (online)
• Video game / computer game
• What is MLA Style (8th ed.)?
• Examples of references in works cited in MLA (8th ed.)
• How to format the works cited page in MLA (8th ed.)?
• What is Chicago Style?
• Examples of bibliographic references in Chicago Style – notes and bibliography (17th ed.)
• How to format the bibliography page?
• Notes and in-text citations
• Examples of bibliographic references in Chicago Style – author-date (17th ed.)
• What is Harvard referencing style?
• Examples of bibliographic references in Harvard style
• Online video
• What is IEEE Style?
• Examples of bibliographic references in IEEE Style
• How to format the references pages in IEEE Style?
• What is Vancouver Style?
• Examples of bibliographic references in Vancouver Style

Citation guides

All you need to know about citations

How to cite a master's thesis in Harvard

To cite a master's thesis in a reference entry in Harvard style include the following elements:

• Author(s) of the master's thesis: Give the last name and initials (e. g. Watson, J.) of up to three authors with the last name preceded by 'and'. For four authors or more include the first name followed by et al., unless your institution requires referencing of all named authors.
• Year of submission: Give the year in round brackets.
• Title of the master's thesis: Give the title as presented in the source. Only the first letter of the first word and proper nouns are capitalized.
• Degree description: Type of degree.
• Degree-awarding institution: Give the name of the institution.

Here is the basic format for a reference list entry of a master's thesis in Harvard style:

Author(s) of the master's thesis . ( Year of submission ) Title of the master's thesis . Degree description . Degree-awarding institution .

Take a look at our reference list examples that demonstrate the Harvard style guidelines in action:

A master's thesis by one author

Bauger, L . ( 2011 ) Personality, Passion, Self-esteem and Psychological Well-being among Junior Elite Athletes in Norway . Master's Thesis . University of Tromsø .

An unpublished master's thesis

Aube, K. E . ( 2019 ) A comparison of water main failure prediction models in San Luis Obispo, CA . Unpublished master's thesis . Cal Poly .

This citation style guide is based on the Cite Them Right (10 th edition) Harvard referencing guide.

More useful guides

• Harvard Referencing: Theses
• Referencing with Harvard: Thesis or dissertation
• Citing and referencing: Theses/Dissertations

More great BibGuru guides

• AMA: how to cite an honors thesis
• MLA in-text citations with multiple authors
• MLA: how to cite a 10-q report

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Referencing styles - a Practical Guide

Harvard referencing style.

Used by: Archaeology, Biochemistry (as well as Vancouver), Biology (as well as Vancouver), Economics, Environment, Health Sciences, HYMS (as well as Vancouver), International Pathway College, Management, Philosophy (as well as MLA), Politics, Sociology, Social Policy and Social Work, Theatre, Film, Television and Interactive Media (as well as MHRA)

Introduction to Harvard referencing style

The Harvard style originated at Harvard University. It's been adapted by individual institutions, and there is no set manual or formatting rules, so it is extremely important to check and follow your department's specific regulations.

In-text citations

Information from sources in the text is shown with in-text citations that include the author's surname and the publication year  (and a page number in some situations). These can appear after the information, or integrated into the sentence:

The in-text citation examples given throughout this guide use the (Neville, 2010) version.

Reference list

The reference list at the end of the document includes the full details of each source so the reader can find them themselves. The list is organised alphabetically by author surname. 

The information to include depends on the types of source - see the examples on this page.

Departmental variations

Some departments use their own variations on the Harvard style - if this is the case, details will usually be given on course materials.

Here are some departmental variations:

close all accordion sections

Archaeology

Archaeology prefer students to use page numbers for all in-text citations unless students are referring to a complete book in a very general sense. Anything more specific should have a page number. Archaeology also require the following in-text citation punctuation: (Lee 2012, 236) for in-text citation with page number and (Lee 2012) for in-text citation without page number.

Environment

Environment ask that for multi-authored sources, given in the reference list, that the first 10 named authors are listed before the use of 'et al.' to indicate additional named authors.

Useful resources

Guidance for all source types

Formatting for one, two or more authors.

This guidance applies to all source types.

In-text:  (Becker, 2007)

Bibliography/ Reference List:

List both authors in the order they appear in the publication. Use 'and' between names.

In-text:  (Peck and Coyle, 2005)

3 authors

In the reference list and the first citation, list all authors in the order they appear in the publication. Use 'and' between names. In subsequent citations, give the first author's name followed by  et al.  (the full stop is important!).

• first citation: (Fillit, Rockwood and Woodhouse, 2010)
• subsequent citations: (Fillit et al., 2010)

In all in-text citations, give the first author's name followed by  et al.  (the full stop is important!). In the reference list, you can either include all author names or include the first author name followed by et al. - be consistent in what you choose.

In-text:  (Moore et al., 2010)

In-text citations with multiple sources

If you are synthesising a number of sources to support your argument you may want to use a number of sources in one in-text citation. For example:

They should appear in date order , the most recent one first. 

Author(s) with 2+ sources in the same year

If an author (or a group of authors) have more than one publications in the same year, add lower-case letters (a, b, c, etc.) to the year to differentiate between them. Add a to the first source cited, b to the second course and so on.  For example:

In-text:  (Carroll, 2007a; Carroll 2007b)

Bibliography/ reference list:

No author name or publication date

No author name.

It is important to use quality sources to support your arguments and so you should carefully consider the value of using any source when you cannot identify its author.

For online sources, look carefully for named contributors, such as in the ‘about us’ sections. For printed material look carefully at the publication/ copyright information, which is often on the inside cover of a book or back page of a report. If you can't locate the information you could use the name of the organisation (eg, OECD) for the author. Don't include a URL in a citation.

If there is no individual or organisational author, it is acceptable to use 'Anon' in your Bibliography/ Reference List. You should also use 'Anon' for your in-text citation.

No publication date

Knowing when a source was created, published, or last updated is important as this helps you to determine the relevance and reliability of the source. 

For online sources look carefully for created and/ or last updated dates on the page(s) you are using and similarly look carefully for named contributors, such as in the ‘about us’ sections. For printed material, especially historical sources where the exact date is unclear you could use ‘circa’ or ‘c’ before the date to indicate the approximate date of publication. For example:

Direct quotes

Quotations are word-for-word text included in your work and must be clearly distinguished from your own words and ideas. Quotations are word-for-word text included in your work and must be clearly distinguished from your own words and ideas. You must also include the page number(s) in the in-text citation.

Short quotations (less than 40 words)

Use a brief phrase within your paragraph or sentence to introduce the quotation before including it inside double quotation marks “ “. For example:

Longer quotations (of 40 words or more)

Use block quotation, without quotation marks, but clearly indented to indicate these words are not your own. For example:

Citing a source you've read about in a different source (secondary referencing)

A secondary reference is given when you are referring to a source which you have not read yourself, but have read about in another source, for example referring to Jones’ work that you have read about in Smith. 

Avoid using secondary references wherever possible  and locate the original source and reference that. Only give a secondary reference where this is not possible and you deem it essential to use the material. It is important to think carefully about using secondary references as the explanation or interpretation of that source by the author you have read may not be accurate.

If it is essential to use a secondary reference follow:

In-text : Campell (1976) highlighted…(as cited in Becker, 2007, p.178)

Only the source you have actually read is referenced in the bibliography/ reference list

When to include page numbers in in-text citations

It is important to give a page number to an in-text citation in the following circumstances:

• when quoting directly
• when referring to a specific detail in a text (for example, a specific theory or idea, an illustration, a table, a set of statistics).

This might mean giving an individual page number or a small range of pages from which you have taken the information. Giving page numbers enables the reader to locate the specific item to which you refer.

When to use capital letters in titles

You should only capitalise the first letter of the first word of a book, journal article etc. The exception is the names of organisations.

Including citations or footnotes in word count

Usually in-text citations will be included in your word count as they are integral to your argument. This may vary depending on the assignment you are writing and you should confirm this with your module tutor. If in-text citations are included this does not mean you should leave out citations where they are appropriate.

Using abbreviations

You can use the following abbreviations in Harvard style citations and references:

• ch./chap. (chapter)
• ed. (edition)
• Ed./Eds. (editor/editors)
• et al. (and others)
• n.d. (no date)
• no. (issue number)
• p. (single page)
• pp. (page range)
• ser. (series)
• supp. (supplement)
• tab. (table)
• vol. (volume)

The difference between a reference list and a bibliography

References are the items you have read and specifically referred to (or cited) in your assignment. You are expected to list these references at the end of your assignment, this is called a reference list or bibliography.

These terms are sometimes used in slightly different ways:

• a reference list will include all the references that you have cited in the text.
• a bibliography is sometimes used to refer to a list of everything you consulted in preparation for writing your assignment, whether or not you referred specifically to it in the assignment.

You would normally only have one list, headed ‘references’ or ‘bibliography’, and you should check with your department which you are required to provide.

Questions about referencing?

Contact your Faculty Librarians if you have any questions about referencing.

Commonly used sources

Examples of in-text citations and reference list entries for key source types.

Use these examples alongside the information given in the 'Guidance for all source types' box. Pay particular attention to the guidance on formatting for one, two or more authors.

In-text citation: (Peck and Coyle, 2005)

Reference list:

Information to include Author(s) name, initials. (year).  Name of book . Place: Publisher name.

For a translated book or a book published in another language, see the examples below.

Edited book (& chapters)

Chapter in an edited book.

In-text citation:  (Dobel, 2005)

Information to include Chapter author(s) surname, initials. (year). Title of chapter. In editor(s) surname, initials (Ed/Eds.),  Title of edited book . Place: Publisher name, pp. page numbers

Edited book as a whole

In-text citation: first citation (Daniels, Lauder, & Porter, 2009), subsequent citation (Daniels et al., 2009)

Information to include Editor(s) surname, initials (Ed/Eds.). (year).  Title of edited book . Place: Publisher name.

Interview (conducted by another person)

If referring to an interview conducted by someone else that has been published in such as a newspaper or journal you can reference in the following way

In-text:  (Beard, 2012) 

Interview (conducted yourself)

If referring to an interview you have conducted as part of your research you should give a citation, perhaps also signposting the reader to a transcript attached as an appendix, and a full reference. Consideration also needs to be given to confidentiality and interviewee anonymity as appropriate.

In-text:  (Smith, 2012)

Journal article / paper

In-text:  (Selman, 2012)

Information to include Author(s) surname, initials. (year). Title of article / paper.  Name of journal , volume(issue), page numbers. Available at: DOI.

In the absence of a DOI add a URL instead.

If you are citing the print copy of a journal article / paper and not accessing it online, omit the DOI and end the reference after the page numbers.

Newspaper or magazine article

Newspaper or magazine article.

Include the most precise date of publication given - usually full date for newspaper articles, month and year for magazines.

In-text:  (Brady and Dutta, 2012; Clarkson, 2008)

Information to include Author surname and initial. (year). Title of article.  Name of newspaper/magazine . day month year, pp. page numbers.

Articles without named author

Give the name of the newspaper or magazine in place of the author name.

In-text:  (The Guardian, 2012)

Information to include Name of newspaper/magazine (year).  Editorial: Title of article,  day month year, pp. page numbers.

Online articles

In-text:  (Laurance, 2013)

Information to include Author surname and initial. (year). Title of article.  Name of newspaper/magazine . [Online] day month year. Available at: URL  [Accessed day month year].

Include Last updated: if the page is likely to be updated (eg, news sites)

Website with author

In-text:  (Peston, 2012)

Information needed: Author(s) name, initial. (year). Name of specific webpage.  [Online]. Name of full website. Last updated: day month year. Available at: URL [Accessed day month year].

Website without named author

In-text:  (St John Ambulance, 2011)

Information needed: Organisation. (year). Name of specific webpage.  [Online]. Name of full website. Last updated: day month year. Available at: URL [Accessed day month year].

Further sources

Examples of in-text citations and reference list entries for other source types.

Use these examples alongside the information given in the 'Guidance for all source types' box. Pay particular attention to the guidance on formatting for one, two or more authors.

Act of Parliament

In-text : (Education Act, 2011)

The (c.21) refers to the chapter, the number of the Act according to those passed during the parliamentary session.

In-text:  ( Master Atlas of Greater London , 2007)

Bibliography/ Reference List: 

In-text:  (Carswell, 2012)

Book illustration

In-text:  (Schwortz, 1978)

Book (translated to English)

If you are reading an English language version of a book originally published in another language follow this example.

In-text:  (Larsson, 2009)

Book (read in another language)

Follow this example if you need to reference a book that you read in another language.

In-text:  (Hoops, 1932)

To reference an example of case law you will need to know the abbreviation for the law report in which the case was published. This is usually provided in the citation for the case.

In-text:  ('Gray v Thames Trains Ltd', 2009)

Case study within a textbook or website

If the case study is within another publication, such as a textbook or website, you can either cite it as a chapter or a range of pages within that publication.

In-text:  (Burns, 2018)

Standalone case study

In-text:  (Graf and Wentland, 2017)

Computer application/program/software

In-text:  (Autodesk, 2011)

Conference papers & proceedings

Conference proceedings (full).

In-text:  (ALT-C, 2011)

Conference paper (unpublished)

In-text:  (Pettitt, 2008)

CD, CD-Rom or DVD

In-text:  (Gavin and Stacey, 2007)

Either cite the name of the film or the director

In-text:  (Lloyd, 2008) OR ( Mamma Mia , 2008)

In-text:  ( Beauty and the Beast , 2012)

Database (online, DVD or CD) with author

Change [Online] to [CD] or [DVD] if necessary.

In-text:  (Ralchenko, Kramida and Reader, 2011)

Database (online, DVD or CD) without named author

In-text:  ( Oxford language dictionaries online,  2007)

In-text:  (Larkham, 2011)

Dictionary or reference book

Dictionary/reference book with editor.

In-text:  (Marcovitch, 2005)

Dictionary/reference book without editor

In-text:  ( Paperback Oxford English dictionary , 2006)

E-book (online)

If page markers are not available on the e-book version you are using cite the chapter for specific references to the source (eg “…” (Schlick, 2010, ch.1)).

In-text: (Schlick, 2010)

E-book (using e-reader)

If viewing an e-book using an e-book reader it is important to reference the specific version of the publication for this reader. If page markers are not available on the e-book version you are using cite the chapter for specific references to the source (eg “quote” (Collins, 2011, ch.3)).

In-text:  (Collins, 2011)

In-text:  (Johnson, 2009)

Encyclopedia (full book or individual entry)

Encyclopedia (full book).

In-text:  ( Encyclopedia of consciousness,  2009)

Encyclopedia (single entry)

In-text:  (Brooks, 2004)

European Court of Justice case

In-text:  According to 'Karl Heinz Bablok and Others v. Freistaat Bayern' (2011)

European Union regulation

In-text:  This issue is covered in 'Council directive 1999/2/EC' (1999)

Film (movie)

Government publication (command paper, eg white paper, green paper).

In-text:  (Great Britain. Defra, 2007)

You can omit ‘Great Britain’ if you are only referring to UK central government publications and this will be clear to your reader. If you are referring to publications by devolved government bodies or to international government publications you should state the jurisdictions. The 'Cm. 7086' refers to the reference number given to this particular document. If you can locate the Cm. number you should include it.

Graph, chart, figure or table

Graph/chart/table/figure (print copy).

Give the title for the table/ figure etc and include a full in-text citation

In-text:  [INSERT IMAGE] The ‘Soloman four-group’ design (Field and Hole, 2010, p. 79, fig. 3.7)

Graph/Chart/Table/Figure (online)

In-text:  [INSERT IMAGE] Youths 16-24 claiming, March 2012 rate ( The Guardian,  2012).

In-text:  (HL Deb 23 July 2019)

In-text:  (Jones, 2011).

Lecture notes

In-text:  (Jones, 2011)

In-text:  (Johnson, 2011)

Each one will have titles and references within it or you can refer to the actual microfiche record number, where it is stored and when accessed. This is an example of conference proceedings.

In-text:  In-text: (AFIPS, 1968)

Musical performance (live)

In-text:  (Copland ,  2012)

Musical score

In-text:  (Puccini, 1980)

Online video (eg YouTube) & other online digital media

In-text:  (Cambridgeshire County Council/BBC, 2010)

Painting or visual work

In-text:  (Monet, 1889)

Pamphlet or booklet

In-text (first mention) : (Graduate Students' Association, 2011)

Parliamentary bill

In-text:  (Finance (No. 4) Bill, 2010-2012)

The HC stands for House of Commons, with HL being used for Bills originating in the House of Lords. The date represents the parliamentary session and the number in [ ] the number of the bill.

In-text:  (Berberet and Bates, 2008)

In-text:  (Jarche, 1931)

Play (live performance)

In-text:  (Lynn & Jay ,  2012)

Play (published script)

In-text:  (Webster, 1998)

Poem (in an anthology)

In-text:  (Bairstow, 1980)

In-text:   Waters admits in his interview on the WTF podcast (Maron, 2016) that his trip to Lebanon had a significant impact on him...

Works cited/ bibliography:

Preprint server

Journal article on a preprint server:

In-text:  (Basilio et al., 2023)

Radio programme

In-text:  (BBC Radio 4, 2008).

Religious, sacred & classical texts

Neville (2010, p.161) suggests the following process for using religious or sacred works in your writing:

These include the Bible, Talmud, Koran, Upanishads, and major classical works, such as the ancient Greek and Roman works. If you are simply quoting a verse or extract, you do not need to give full reference entries. Instead, you should include the detail in the text of your assignment, for example:

The film script at this point echoes the Bible: ‘And God looked upon the earth, and, behold, it was corrupt; for all flesh had corrupted his way upon the earth’.

(Gen. 6:12) [the in-text citation is for the book of Genesis, chapter 6, verse 12]

However, if you were referring to a particular edition for a significant reason, it could be listed in full in the main references, eg:

Report (online)

In-text:  (Nursing and Midwifery Council, 2008)

Report (hard copy)

In-text:  (Higher Education Academy, 2008)

Republished source

This format is for when you read a more recent version of an older work. In-text, the date of the original publication is given first, with the later version in [ ], with any page reference to this newer version following. In the bibliography/ reference list you give the date and details of the version you read, with the original publisher and date at the end of the reference.

In-text:  (Dickens, 1846 [2005], p.29)

In-text:  (Warner, 2008)

Sound recording (CD, vinyl, cassette)

In-text:  (Belle & Sebastian, 2003, track 8)

Source material where confidentiality is maintained

This should be used where it is important the institution from which the source originates should not be named, in to order protect corporate or individual confidentiality. For example, where a policy, procedure or care plan is being used.

In-text: (NHS Trust, 1999) or, for example: “This was in accordance with the NHS Trust's (Name withheld, 1999) disciplinary policy”.

Bibliography/ Reference List :

In-text:  (British Standards Institute, 2006)

Statutory instrument

In-text:  (Control of Substances Hazardous to Health Regulations 1988)

Telephone conversation

In-text:  (Johnson, 2012)

Television programme

In-text:  ( Panorama : Britain's Crimes of Honour, 2012)

Text message

In-text:  (Johnson, 2007)

In-text:  (Chen, 2011)

In-text:  (ELDT, 2012)

In-text:  (Appropedia, 2011)

Use either the proper name of the author or X pseudonym. In the following example either (Trump, 2012) or (@realDonaldTrump, 2012) can be used in-text and in the Bibliography/ Reference List reference.

In-text: Trump (2012) went as far as to claim that the Chinese invented climate change in a post in 2012.

Bibliography/ Reference list:

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• Free Tools for Students
• Harvard Referencing Generator

Free Harvard Referencing Generator

Generate accurate Harvard reference lists quickly and for FREE, with MyBib!

🤔 What is a Harvard Referencing Generator?

A Harvard Referencing Generator is a tool that automatically generates formatted academic references in the Harvard style.

It takes in relevant details about a source -- usually critical information like author names, article titles, publish dates, and URLs -- and adds the correct punctuation and formatting required by the Harvard referencing style.

The generated references can be copied into a reference list or bibliography, and then collectively appended to the end of an academic assignment. This is the standard way to give credit to sources used in the main body of an assignment.

👩‍🎓 Who uses a Harvard Referencing Generator?

Harvard is the main referencing style at colleges and universities in the United Kingdom and Australia. It is also very popular in other English-speaking countries such as South Africa, Hong Kong, and New Zealand. University-level students in these countries are most likely to use a Harvard generator to aid them with their undergraduate assignments (and often post-graduate too).

🙌 Why should I use a Harvard Referencing Generator?

A Harvard Referencing Generator solves two problems:

• It provides a way to organise and keep track of the sources referenced in the content of an academic paper.
• It ensures that references are formatted correctly -- inline with the Harvard referencing style -- and it does so considerably faster than writing them out manually.

A well-formatted and broad bibliography can account for up to 20% of the total grade for an undergraduate-level project, and using a generator tool can contribute significantly towards earning them.

⚙️ How do I use MyBib's Harvard Referencing Generator?

Here's how to use our reference generator:

• If citing a book, website, journal, or video: enter the URL or title into the search bar at the top of the page and press the search button.
• Choose the most relevant results from the list of search results.
• Our generator will automatically locate the source details and format them in the correct Harvard format. You can make further changes if required.
• Then either copy the formatted reference directly into your reference list by clicking the 'copy' button, or save it to your MyBib account for later.

MyBib supports the following for Harvard style:

🍏 What other versions of Harvard referencing exist?

There isn't "one true way" to do Harvard referencing, and many universities have their own slightly different guidelines for the style. Our generator can adapt to handle the following list of different Harvard styles:

• Cite Them Right
• Manchester Metropolitan University (MMU)
• University of the West of England (UWE)

Daniel is a qualified librarian, former teacher, and citation expert. He has been contributing to MyBib since 2018.

Free Harvard Citation Generator

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• Select style:
• Archive material
• Chapter of an edited book
• Conference proceedings
• Dictionary entry
• Dissertation
• DVD, video, or film
• E-book or PDF
• Edited book
• Encyclopedia article
• Government publication
• Music or recording
• Online image or video
• Presentation
• Press release
• Religious text

What is the Harvard Referencing System?

The Harvard citation style is a system that students, writers and researchers can use to incorporate other people’s quotes, findings and ideas into their work in order to support and validate their conclusions without breaching any intellectual property laws. The popular format is typically used in assignments and publications for humanities as well as natural, social and behavioural sciences.

It is a parenthetical referencing system that is made up of two main components:

• In-text citations including the author’s surname and the year of publication should be shown in brackets wherever another source has contributed to your work
• A reference list outlining all of the sources directly cited in your work

While in-text citations are used to briefly indicate where you have directly quoted or paraphrased a source, your reference list is an alphabetized list of complete Harvard citations that enables your reader to locate each source with ease. Each entry should be keyed to a corresponding parenthetical citation in the main body of your work, so that a reader can take an in-text citation and quickly retrieve the source from your reference list.

Note that some universities, and certain disciplines, may also require you to provide a bibliography. This is a detailed list of all of the material you have consulted throughout your research and preparation, and it will demonstrate the lengths you have gone to in researching your chosen topic.

‘Harvard referencing’ is an umbrella term for any referencing style that uses the author name and year of publication within the text to indicate where you have inserted a source. This author-date system appeals to both authors and readers of academic work. Scholars find the format an economical way of writing, and it is generally more accessible to the reader as there are no footnotes crowding the page. Only the name of the author, the publication date of the source and, if necessary, the page numbers are included in the parenthetical citations, for example: (Joyce, 2008).

Use the Cite This For Me Harvard style referencing generator to create your fully-formatted in-text references and reference list in the blink of an eye. Stop giving yourself extra pain and work for no reason and sign up to Cite This For Me today – your only regret will be that you didn’t use our citation generator sooner!

Popular Harvard Referencing Examples

• Chapter of a book
• Conference proceedings 
• Court case 
• Dissertation 
• Encyclopedia article 
• Image online or video
• Presentation or lecture
• Video, film, or DVD

Cite This For Me Harvard Referencing Guide

The following guide provides you with everything you need to know to do justice to all your hard work and get a mark that reflects those sleepless nights. If you’re not sure how to format your Harvard style citations, what citations are, or are simply curious about the Cite This For Me citation generator, our guide will answer all of your questions while offering you a comprehensive introduction to the style. Keep reading to find out why you need to use a referencing system, how to add citations in the body of your assignment, and how to compile a reference list.

Sometimes, students do not encounter citing until they embark on to degree-level studies, yet it is a crucial academic skill that will propel you towards establishing yourself in the academic community. It’s a common mistake to leave citing and creating a complete and accurate bibliography until the very last minute, but with the Cite This For Me Harvard referencing generator you can cite-as-you-go.

So, if you need a helping hand with your referencing then why not try Cite This For Me’s automated citation generator ? The generator accesses knowledge from across the web, assembling all of the relevant information into a fully-formatted reference list that clearly presents all of the sources that have contributed to your work. Using this Harvard reference generator to cite your sources enables you to cross the finishing line in style.

It is important to bear in mind that there is a plethora of different citation styles out there – the use of any particular one depends on the preference of your college, subject, professor or the publication you are submitting the work to. If you’re unsure which style you should be using, consult your tutor and follow their guidelines. If your lecturer or department does not ask you to use a particular style, we recommend using the Harvard referencing system because it is simple to use and easy to learn.

The powerful citation generator above can auto-generate citations in 7,000+ styles. So, whether your professor prefers that you use the MLA format , or your discipline requires you to adopt the APA citation or Chicago citation style , we have the style you need. Cite This For Me also provides citation generators and handy style guides for styles such as ASA , AMA or IEEE . To accurately create citations in a specific format, simply sign up to Cite This For Me for free and select your chosen style.

Are you struggling with citing an unfamiliar source type? Or feeling confused about whether to cite a piece of common knowledge? This guide will tell you everything you need to know to get both your parenthetical Harvard citations and reference list completed quickly and accurately.

Why Do I Need to Cite?

Harvard referencing can be a confusing task, especially if you are new to the concept, but it’s absolutely essential. In fact, accurate and complete referencing can mean the difference between reaching your academic goals and damaging your reputation amongst scholars. Simply put – referencing is the citing of sources you have utilised to support your essay, research, conference or article, etc.

Even if you are using our Harvard style citation generator, understanding why you need to cite will go a long way in helping you to naturally integrate the process into your research and writing routine.

Firstly, whenever another source contributes to your work you must give the original author the appropriate credit in order to avoid plagiarism, even when you have completely reworded the information. The only exception to this rule is common knowledge – e.g., Brazil is a country in South America. While plagiarism is not always intentional, it is easy to accidentally plagiarize your work when you are under pressure from imminent deadlines, you have managed your time ineffectively, or if you lack confidence when putting ideas into your own words. The consequences can be severe; deduction of marks at best, expulsion from college or legal action from the original author at worst. Find out more here.

This may sound overwhelming, but using our Harvard citation generator can help you avoid plagiarism and carry out your research and written work thoughtfully and responsibly. We have compiled a handy checklist to follow while you are working on an assignment.

How to avoid plagiarism:

• Formulate a detailed plan – carefully outline both the relevant content you need to include, as well as how you plan on structuring your work
• Keep track of your sources – record all of the relevant publication information as you go (e.g., If you are citing a book you should note the author or editor’s name(s), year of publication, title, edition number, city of publication and name of publisher). Carefully save each quote, word-for-word, and place it in inverted commas to differentiate it from your own words. Tired of interrupting your workflow to cite? Use our Harvard referencing generator to automate the process.
• Manage your time effectively – make use of time plans and targets, and give yourself enough time to read, write and proofread
• When you are paraphrasing information, make sure that you use only your own words and a sentence structure that differs from the original text
• Every quote or paraphrase should have a corresponding reference in the text. In addition, a full reference is needed on the final page of the project.
• Save all of your research and citations in a safe place – organise and manage your Harvard style citations

If you carefully check your college or publisher’s advice and guidelines on citing and stick to this checklist, you should be confident that you will not be accused of plagiarism.

Secondly, proving that your writing is informed by appropriate academic reading will enhance your work’s authenticity. Academic writing values original thought that analyzes and builds upon the ideas of other scholars. It is therefore important to use Harvard style referencing to accurately signpost where you have used someone else’s ideas in order to show that your writing is based on knowledge and informed by appropriate academic reading. Citing your sources will demonstrate to your reader that you have delved deeply into your chosen topic and supported your thesis with expert opinions.

Here at Cite This For Me we understand how precious your time is, which is why we created our Harvard citation generator and guide to help relieve the unnecessary stress of citing. Escape assignment-hell and give yourself more time to focus on the content of your work by using the Cite This For Me citation management tool.

Harvard Referencing Guidelines by School

• Anglia University Harvard Referencing
• Anglia Ruskin University
• Bath University
• Bournemouth University Harvard Referencing
• Cape Peninsula University of Technology
• Cardiff University Harvard Referencing
• City University London
• Coventry University Harvard Referencing
• Cranfield Harvard
• DMU Harvard Referencing
• Durham University Business School
• Edge Hill University Harvard Referencing
• European Archaeology
• Imperial College University Harvard Referencing
• Institute of Physics
• Leeds University Harvard Referencing
• King’s College London
• LSBU Harvard Referencing
• Manchester Business School
• MMU Harvard Referencing
• Newcastle University
• Northwest University
• Oxford Brookes University
• Oxford Centre for Mission Studies
• SHU Harvard Referencing
• Staffordshire University Harvard Referencing
• Swinburne University of Technology
• The Open University
• UCA Harvard Referencing
• University of Abertay Dundee
• University of Birmingham
• University of Cape Town
• University of Gloucestershire
• University of Greenwich Harvard
• University of Hull
• University of Kent – Harvard
• University of Limerick
• University of Melbourne
• University of Northampton
• University of Sunderland
• University of Technology, Sydney
• University of West London
• UWE Harvard Referencing
• UWS Harvard Referencing
• Wolverhampton University Harvard Referencing
• York University

How Do I Create and Format In-text Harvard Style Citations?

In-text citations are the perfect way to seamlessly integrate sources into your work, allowing you to strengthen the connection between your own ideas, and the source material that you have found, with ease. It is worth noting that in-text citations must be included in your assignment’s final word count.

When adopting Harvard style referencing in your work, if you are inserting a quote, statement, statistic or any other kind of source information into the main body of your essay you should:

• Provide the author’s surname and date of publication in parentheses right after the taken information or at the end of the sentence

There are many assumptions when it comes to the information processing approach to cognition… (Lutz and Huitt, 2004).

• If you have already mentioned the author in the sentence, Harvard referencing guidelines require you to only enter the year of publication in parentheses, directly after where the author’s surname is mentioned.

In the overview of these developmental theories, Lutz and Huitt (2004) suggest that…

• If you are quoting a particular section of the source (rather than the entire work), you should also include a page number, or page range, after the date, within the parenthetical Harvard citation

“…the development of meaning is more important than the acquisition of a large set of knowledge or skills …” (Lutz and Huitt, 2004, p.8), which means that …

• Note that if the source has four or more authors, you do not need to write out all of their surnames; simply use the first author’s surname followed by the abbreviation ‘et al.’ (meaning ‘and others’).

The results showed that respondents needed to reach out to multiple health agencies in order to cover the costs of their services (Wolbeck Minke et al., 2007).

• If you are reading a source by one author and they cite work by another author, you may cite that original work as a secondary reference. You are encouraged to track down the original source – usually this is possible to do by consulting the author’s reference list – but if you are unable to access it, the Harvard referencing guidelines state that you must only cite the source you did consult as you did not actually read the original document. Include the words ‘cited in’ in the in-text citation to indicate this.

Fong’s 1987 study (cited in Bertram 1997) found that older students’ memory can be as good as that of young people…

(Fong, cited in Bertram 1997)

Why use a Harvard referencing tool? As well as saving you valuable time, the Cite This For Me generator can help you easily avoid common errors when formatting your in-text citations. So, if you’re looking for an easy way to credit your source material, simply login to your Cite This For Me account to copy, save and export each in-text Harvard citation.

How Do I Format My Reference List?

Utilizing and building on a wide range of relevant sources is one way of impressing your reader, and a comprehensive list of the source material you have used is the perfect platform to exhibit your research efforts. A reference list is always required when you cite other people’s work within your assignment, and the brief in-text Harvard style citations in your work should directly link to your reference list.

As a general rule a reference list includes every source that you have cited in your work, while a bibliography also contains any relevant background reading which you have consulted to familiarise yourself with the topic (even those sources that are never mentioned in the narrative). Your Harvard referencing bibliography should start on its own page, with the same formatting as the rest of the paper and aligned to the left with the sources listed alphabetically. Certain fields ask you to provide an annotated bibliography that includes your full citations with the addition of notes. These notes are added to further analyze the source, and can be of any length.

Many people use the terms ‘reference list’ and ‘bibliography’ interchangeably, and if you are using the Harvard reference style you may be required to provide a bibliography as well as a reference list, so be sure to check this with your tutor.

Follow these guidelines when compiling your reference list:

• Start your reference list on a new page at the end of your document
• General formatting should be in keeping with the rest of your work
• Use ‘Reference List’ as the heading
• Copy each of your full-length Harvard citations into a list
• Arrange the list in alphabetical order by the author’s last name (titles with no author are alphabetized by the work’s title, and if you are citing two or more sources by the same author they should be listed in chronological order of the year of publication)
• When there are several works from one author or source, they should be listed together but in date order – with the earliest work listed first
• Italicize titles of books, reports, conference proceedings etc. For journal articles, the title of the journal should be printed in italics, rather than the title of the journal article
• Capitalize the first letter of the publication title, the first letters of all main words in the title of a journal, and all first letters of a place name and publisher

Creating and managing your reference list with the Cite This For Me Harvard referencing generator will help improve the way you reference and conduct research.

Reference list / bibliography examples:

• Book, one author:

Bell, J. (2010) Doing your research project . 5th edn. Maidenhead: Open University Press.

• One author, book, multiple editions:

Hawking, S.W. (1998) A brief history of time: From the big bang to black holes . 10th edn. New York: Bantam Doubleday Dell Publishing Group.

• Chapter in an edited book:

Jewsiewicki, B. (2010). ‘Historical Memory and Representation of New Nations in Africa’, in Diawara, M., Lategan, B., and Rusen, J. (eds.) Historical memory in Africa: Dealing with the past, reaching for the future in an intercultural context . New York: Berghahn Books, pp. 53-66.

If all information resembles a book, use the template for a book reference

If a page number is unavailable, use chapter number. URL links are not necessary, but can be useful. When including a URL, include the date the book was downloaded at the end of the Harvard citation:

Available at: URL (Downloaded: DD Month YYYY)

• More than three authors, journal article*:

Shakoor, J., et al. (2011) ‘A prospective longitudinal study of children’s theory of mind and adolescent involvement in bullying’, Journal of Child Psychology and Psychiatry , 53(3), pp. 254–261. doi: 10.1111/j.1469-7610.2011.02488.x.

• Conference papers:

Drogen, E. (2014) ‘Changing how we think about war: The role of psychology’, The British Psychological Society 2014 Annual Conference . The ICC, Birmingham British Psychological Society, 07-09 May 2014.

• Web page, by an individual:

Moon, M. (2019) Ubisoft put an official video game design course inside a video game . Available at https://www.engadget.com/2019/09/25/ubisoft-video-game-design-course/ (Accessed 19 November 2019).

• Web page, by a company or organization:

RotoBaller (2019) NFL player news . Available at https://www.rotoballer.com/player-news?sport=nfl (Accessed 17 September 2019).

For both types of web page references, the date the page was published or updated is placed in parentheses immediately following the author information. If a date is missing from the source, place (no date) next to the author’s name and make sure to include an accessed date at the end of the reference.

Are you struggling to find all of the publication information to complete a reference? Did you know that our Harvard citation generator can help you?

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Harvard Referencing Formatting Guidelines

Accurate referencing doesn’t only protect your work from plagiarism – presenting your source material in a consistent and clear way also enhances the readability of your work. Closely follow the style’s formatting rules on font type, font size, text-alignment and line spacing to ensure that your work is easily legible. Before submitting your work check that you have formatted your whole paper – including your reference list – according to the style’s formatting guidelines.

How to format in Harvard referencing:

• Margins: 2.5cm on all sides
• Shortened title followed by the page number in the header, aligned to the right
• Double-space the entirety of the paper
• ½ inch indentation for every new paragraph (press tab bar)
• Suggested fonts: Times New Roman, Arial and Courier New for Windows; Times New Roman, Helvetica and Courier for Mac, 12pt size. Ensure that all Harvard citations are in the same font as the rest of the work
• Reference list on a separate page at the end of the body of your work

Even when using a Harvard citation generator, always check with your professor for specified guidelines – there is no unified style for the formatting of a paper. Make sure that you apply the recommended formatting rules consistently throughout your work.

A Brief History of the Harvard Reference Style

The author-date system is attributed to eminent zoologist Edward Laurens Mark (1847-1946), Hersey professor of anatomy and director of Harvard’s zoological laboratory. It is widely agreed that the first evidence of Harvard referencing can be traced back to Mark’s landmark cytological paper (Chernin, 1988). The paper breaks away from previous uses of inconsistent and makeshift footnotes through its use of a parenthetical author-date citation accompanied by an explanatory footnote.

• Parenthetic author-year citation, page 194 of Mark’s 1881 paper:

[…] The appearance may be due solely to reflection from the body itself. (Comp. Flemming, ‘78b, p. 310.*)

• Mark’s rationale for his Harvard citational scheme:

*The numbers immediately following an author’s name serve the double purpose of referring the reader to the list (p. 591) where the titles of papers are given, and of informing him at once of the approximate date of the paper in question.

A tribute dedicated to Mark in 1903 by 140 students credits Mark’s paper with having ‘introduced into zoology a proper fullness and accuracy of citation and a convenient and uniform method of referring from text to bibliography’ (Parker, 1903). Today Harvard referencing is widely considered one of the most accessible styles and, although it originated in biology, these days it is used across most subjects – particularly in the humanities, history and social science.

The Evolution of the Harvard Referencing Style

Due to its simplicity and ease of use, the format has become one of the most widely used citation styles in the world. Unlike many citing styles there is no official manual, but institutions such as colleges offer their own unique Harvard reference style guide, and each has its own nuances when it comes to punctuation, order of information and formatting rules. Simply go to the Cite This For Me website to login to your Cite This For Me account and search for the version you need. Make sure you apply consistency throughout your work.

It is increasingly easy for writers to access information and knowledge via the internet, and in turn both the style’s guidelines and our citation generator are continually updated to include developments in electronic publishing. The Cite This For Me Harvard style citation generator currently uses the Cite Them Right 10th Edition, which has evolved in recent years to match the rapidly advancing digital age. In order to avoid plagiarism, you must be cautious about pulling information from the internet, and ensure that you accurately cite all source material used in your written work – including all online sources that have contributed to your research.

Key differences from previous Harvard referencing Cite Them Right editions:

• Previous editions required printed books and eBooks to be referenced differently – in the 10th edition, both are now referenced using the same template (if all the necessary information is available). An Ebook is considered to be the digital format of a published book (or a book that is only published in digital format) that is meant for reading on an electronic device.
• URLs are no longer a requirement for digital media if the information provided in the Harvard citation is sufficient to find the source without it. They should be included if the source is difficult to find, or pieces of source information – such as an author name – are missing.
• When a source has more than 3 authors, use the abbreviation “et al.” instead of listing each out.

These days students draw on a diverse range of digital sources to support their written work. Whether you are citing a hashtag on Instagram , a podcast or a mobile app, the Cite This For Me generator will take care of your Harvard citations, regardless of the type of source you want to cite. So don’t be held back by sources that are difficult to cite – locating unusual source material will help your work to stand out from the crowd.

How Do I Create Accurate Harvard Citations?

Creating complete and correctly formatted citations can be a challenge for many writers, especially when documenting multiple source types. Our primary goal at Cite This For Me is to offer support to students and researchers across the globe by transforming the way in which they perceive citing. We hope that after using our citation generator and reading this Harvard referencing guide, what was once considered an arduous process, will be viewed as a highly-valued skill that enhances the quality of your work.

Disheartened by the stressful process of citing? Got a fast-approaching deadline? Using the Cite This For Me fast, accessible and free generator makes creating accurate citations easier than ever, leaving more time for you to focus on achieving your academic goals.

Create a free account to add and edit each Harvard citation on the spot, import and export full projects or individual entries. Things get even easier with Cite This For Me for Chrome – an intuitive, handy browser extension that allows you to create and edit a citation while you browse the web. Use the extension on any webpage that you want to cite, and add it to your chosen project without interrupting your workflow.

The Cite This For Me citation management tool is here to help you, so what are you waiting for? Accurate Harvard citations are just a click away!

Reference List

Chernin, E. (1988) The ‘Harvard System’: A mystery dispelled. Available at: http://www.uefap.com/writing/referenc/harvard.pdf (Accessed: 4 July 2016).

Parker, G. (ed.) (1903) Mark anniversary volume. New York: Henry Holt.

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• Reference a Website in Harvard Style | Templates & Examples

Reference a Website in Harvard Style | Templates & Examples

Published on 19 May 2020 by Jack Caulfield . Revised on 7 November 2022.

To reference a website in Harvard style , include the name of the author or organization, the year of publication, the title of the page, the URL, and the date on which you accessed the website.

Different formats are used for other kinds of online source, such as articles, social media posts and multimedia content. You can generate accurate Harvard references for all kinds of sources with our free reference generator:

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Table of contents

Online articles, social media posts, images, videos and podcasts, referencing websites with missing information, frequently asked questions about harvard website references.

Blog posts and online newspaper articles are both referenced in the same format: include the title of the article in quotation marks, the name of the blog or newspaper in italics, and the date of publication.

The format for a magazine article is slightly different. Instead of a precise date, include the month, season, or volume and issue number, depending on what the magazine uses to identify its issues.

The URL and access date information are included only when the article is online-exclusive.

Prevent plagiarism, run a free check.

To reference posts from social media platforms like Facebook, Twitter and Instagram, include the username and the platform in square brackets. Write usernames the way they appear on the platform, with the same capitalization and symbols.

If the post has a title, use it (in quotation marks). If the post is untitled, use the text of the post instead. Do not use italics. If the text is long, you can replace some of it with an ellipsis.

Online content is referenced differently if it is in video, audio or image form.

To cite an image found online, such as an artwork, photograph, or infographic, include the image format (e.g. ‘Photograph’, ‘Oil on canvas’) in square brackets.

Online videos, such as those on YouTube, Instagram, Vimeo and Dailymotion, are cited similarly to general web pages. Where a video is uploaded under the name of an individual, write the name in the usual format. Otherwise, write the username of the uploader as it appears on the site.

If you want to locate a specific point in a video in an in-text citation, you can do so using a timestamp.

For a podcast reference, you just need the name of the individual episode, not of the whole series. The word ‘Podcast’ is always included in square brackets. As with videos, you can use a timestamp to locate a specific point in the in-text citation.

Online sources are often missing information you would usually need for a citation: author, title or date. Here’s what to do when these details are not available.

When a website doesn’t list a specific individual author, you can usually find a corporate author to list instead. This is the organisation responsible for the source:

In cases where there’s no suitable corporate author (such as online dictionaries or Wikis), use the title of the source in the author position instead:

In Harvard style, when a source doesn’t list a specific date of publication, replace it with the words ‘no date’ in both the in-text citation and the reference list. You should still include an access date:

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It’s important to assess the reliability of information found online. Look for sources from established publications and institutions with expertise (e.g. peer-reviewed journals and government agencies).

The CRAAP test (currency, relevance, authority, accuracy, purpose) can aid you in assessing sources, as can our list of credible sources . You should generally avoid citing websites like Wikipedia that can be edited by anyone – instead, look for the original source of the information in the “References” section.

You can generally omit page numbers in your in-text citations of online sources which don’t have them. But when you quote or paraphrase a specific passage from a particularly long online source, it’s useful to find an alternate location marker.

For text-based sources, you can use paragraph numbers (e.g. ‘para. 4’) or headings (e.g. ‘under “Methodology”’). With video or audio sources, use a timestamp (e.g. ‘10:15’).

In Harvard referencing, up to three author names are included in an in-text citation or reference list entry. When there are four or more authors, include only the first, followed by ‘ et al. ’

A Harvard in-text citation should appear in brackets every time you quote, paraphrase, or refer to information from a source.

The citation can appear immediately after the quotation or paraphrase, or at the end of the sentence. If you’re quoting, place the citation outside of the quotation marks but before any other punctuation like a comma or full stop.

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If you want to cite this source, you can copy and paste the citation or click the ‘Cite this Scribbr article’ button to automatically add the citation to our free Reference Generator.

Caulfield, J. (2022, November 07). Reference a Website in Harvard Style | Templates & Examples. Scribbr. Retrieved 14 May 2024, from https://www.scribbr.co.uk/referencing/harvard-website-reference/

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Secondary referencing

• A-Z of Harvard references
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• Journal article
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• Book illustration, Figure or Diagram
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• Act of the UK parliament (statute)
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'Secondary referencing' is the term for when you want to reference a source that is quoted in something else.  Good academic practice is to go back to the original text, read the quote in context and then cite that directly but sometimes this isn’t possible. 

So, for example, the article that you are reading by Skelton (2011) cites Festinger’s (1957) book, and you want to use Festinger’s excellent idea in your essay.  In this case you might decide to use Festinger’s words that Skelton quotes and, to do this, you will use a form of secondary referencing. 

Festinger’s (1957, cited in Skelton, 2011, p.258) ideas that dissonance is inevitable …

Feelings of dissonance are inevitable if implicit values are denied in practice (Festinger, 1957, cited in Skelton, 2011, p.258) ...

You will always include the source that you did read, in this example Skelton, in your References list.  Do not list Festinger in your References, because you did not read this source.

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Models were stratified by age, cohort (sex), and calendar time, and adjusted for Southern European/Mediterranean ancestry (yes/no), married (yes/no), living alone (yes/no), smoking status (never, former, current smoker 1-14 cigarettes/d, 15-24 cigarettes/d, or ≥25 cigarettes/d), physical activity (<3.0, 3.0-8.9, 9.0-17.9, 18.0-26.9, ≥27.0 metabolic equivalent of task–h/wk), multivitamin use (yes/no), history of hypertension (yes/no), history of hypercholesterolemia (yes/no), history of diabetes (yes/no), in women postmenopausal status and menopausal hormone use (premenopausal, postmenopausal [no, past, or current hormone use]), total energy intake (kcal/d), family history of dementia (yes/no), history of depression (yes/no), census socioeconomic status (9-variable score, in quintiles), and body mass index calculated as weight in kilograms divided by height in meters squared (<23, 23-25, 25-30, 30-35, ≥35). Pooled results were obtained by pooling the datasets of the cohorts. AMED score is without monounsaturated:saturated fats intake ratio component. AHEI score is without polyunsaturated fats intake component. HR indicates hazard ratio.

a Reference value.

b P  < .05.

Substitution analysis of 5 g/d intake of olive oil for the equivalent amount of butter, other vegetable oils, mayonnaise, and margarine. All Cox proportional hazards models were stratified by age and calendar time. Models were adjusted for Southern European/Mediterranean ancestry (yes/no), married (yes/no), living alone (yes/no), smoking status (never, former, current smoker 1-14 cigarettes/d, 15-24 cigarettes/d, or ≥25 cigarettes/d), alcohol intake (0, 0.1-4.9, 5.0-9.9, 10.0-14.9, and ≥15.0 g/d), physical activity (<3.0, 3.0-8.9, 9.0-17.9, 18.0-26.9, ≥27.0 metabolic equivalent of task–h/wk), multivitamin use (yes/no), history of hypertension (yes/no), history of hypercholesterolemia (yes/no), in women postmenopausal status and menopausal hormone use (premenopausal, postmenopausal [no, past, or current hormone use]), total energy intake (kcal/d), family history of dementia (yes/no), history of depression (yes/no), census socioeconomic status (9-variable score, in quintiles), body mass index calculated as weight in kilograms divided by height in meters squared (<23, 23-25, 25-30, 30-35, ≥35), red meat, fruits and vegetables, nuts, soda, whole grains intake (in quintiles), and trans-fat. Pooled results were obtained by pooling the data sets of the cohorts and Cox proportional hazards model 3 was further stratified by cohort (sex). HR indicates hazard ratio.

eTable 1. Odds Ratios for Dementia-Related Mortality by APOE4 Allelic Dosage

eTable 2. Risk of Death With Dementia (Composite Outcome) According to Categories of Total Olive Oil

eTable 3. Joint Associations of Olive Oil Intake and AMED (A), and AHEI (B) With Dementia-Related Mortality Risk

eTable 4. Risk of Dementia-Related Mortality According to Categories of Total Olive Oil in the Genomic DNA Subsample

eFigure. Subgroup Analyses for 5g/d Increase in Olive Oil Intake With Dementia-Related Mortality Risk

eTable 5. Risk of Dementia-Related Mortality According to Categories of Total Olive Oil Without Stopping Diet Update Upon Report of Intermediate Non-Fatal Events

eTable 6. Risk of Dementia Mortality According to Categories of Total Olive Oil Applying a 4-Year Lag Period Between Dietary Intake and Dementia Mortality

eTable 7. Risk of Dementia-Related Mortality According to Categories of Total Olive Oil Adjusting for Other Covariates

eTable 8. Risk of Mortality From Dementia and Other Causes of Death According to Categories of Total Olive Oil Applying a Competing Risk Model

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Tessier A , Cortese M , Yuan C, et al. Consumption of Olive Oil and Diet Quality and Risk of Dementia-Related Death. JAMA Netw Open. 2024;7(5):e2410021. doi:10.1001/jamanetworkopen.2024.10021

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Consumption of Olive Oil and Diet Quality and Risk of Dementia-Related Death

• 1 Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
• 2 School of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
• 3 Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
• 4 Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
• 5 Department of Public Health and Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

Question   Is the long-term consumption of olive oil associated with dementia-related death risk?

Findings   In a prospective cohort study of 92 383 adults observed over 28 years, the consumption of more than 7 g/d of olive oil was associated with a 28% lower risk of dementia-related death compared with never or rarely consuming olive oil, irrespective of diet quality.

Meaning   These results suggest that olive oil intake represents a potential strategy to reduce dementia mortality risk.

Importance   Age-standardized dementia mortality rates are on the rise. Whether long-term consumption of olive oil and diet quality are associated with dementia-related death is unknown.

Objective   To examine the association of olive oil intake with the subsequent risk of dementia-related death and assess the joint association with diet quality and substitution for other fats.

Design, Setting, and Participants   This prospective cohort study examined data from the Nurses’ Health Study (NHS; 1990-2018) and Health Professionals Follow-Up Study (HPFS; 1990-2018). The population included women from the NHS and men from the HPFS who were free of cardiovascular disease and cancer at baseline. Data were analyzed from May 2022 to July 2023.

Exposures   Olive oil intake was assessed every 4 years using a food frequency questionnaire and categorized as (1) never or less than once per month, (2) greater than 0 to less than or equal to 4.5 g/d, (3) greater than 4.5 g/d to less than or equal to 7 g/d, and (4) greater than 7 g/d. Diet quality was based on the Alternative Healthy Eating Index and Mediterranean Diet score.

Main Outcome and Measure   Dementia death was ascertained from death records. Multivariable Cox proportional hazards regressions were used to estimate hazard ratios (HRs) and 95% CIs adjusted for confounders including genetic, sociodemographic, and lifestyle factors.

Results   Of 92 383 participants, 60 582 (65.6%) were women and the mean (SD) age was 56.4 (8.0) years. During 28 years of follow-up (2 183 095 person-years), 4751 dementia-related deaths occurred. Individuals who were homozygous for the apolipoprotein ε4 ( APOE ε4 ) allele were 5 to 9 times more likely to die with dementia. Consuming at least 7 g/d of olive oil was associated with a 28% lower risk of dementia-related death (adjusted pooled HR, 0.72 [95% CI, 0.64-0.81]) compared with never or rarely consuming olive oil ( P for trend < .001); results were consistent after further adjustment for APOE ε4 . No interaction by diet quality scores was found. In modeled substitution analyses, replacing 5 g/d of margarine and mayonnaise with the equivalent amount of olive oil was associated with an 8% (95% CI, 4%-12%) to 14% (95% CI, 7%-20%) lower risk of dementia mortality. Substitutions for other vegetable oils or butter were not significant.

Conclusions and Relevance   In US adults, higher olive oil intake was associated with a lower risk of dementia-related mortality, irrespective of diet quality. Beyond heart health, the findings extend the current dietary recommendations of choosing olive oil and other vegetable oils for cognitive-related health.

One-third of older adults die with Alzheimer disease or another dementia. 1 While deaths from diseases such as stroke and heart disease have been decreasing over the past 20 years, age-standardized dementia mortality rates have been on the rise. 2 The Mediterranean diet has gained in popularity owing to its recognized, multifaceted health benefits, particularly on cardiovascular outcomes. 3 Accruing evidence suggests this dietary pattern also has a beneficial effect on cognitive health. 4 As part of the Mediterranean diet, olive oil may exert anti-inflammatory and neuroprotective effects due to its high content of monounsaturated fatty acids and other compounds with antioxidant properties such as vitamin E and polyphenols. 5 A substudy conducted as part of the Prevencion con Dieta Mediterranea (PREDIMED) randomized trial provided evidence that higher intake of olive oil for 6.5 years combined with adherence to a Mediterranean diet was protective of cognitive decline when compared with a low-fat control diet. 6 - 8

Given that most previous studies on olive oil consumption and cognition were conducted in Mediterranean countries, 7 - 10 studying the US population, where olive oil consumption is generally lower, could offer unique insights. Recently, we showed that olive oil consumption was associated with a lower risk of total and cause-specific mortality in large US prospective cohort studies, including a 29% (95% CI, 22%-36%) lower risk for neurodegenerative disease mortality in participants who consumed more than 7 g/d of olive oil compared with little or none. 11 However, this previous analysis was not designed to examine the association of olive oil and diet quality with dementia-related mortality, and therefore the latter remains unclear.

In this study, we examined the association between total olive oil consumption and the subsequent risk of dementia-related mortality in 2 large prospective studies of US women and men. Additionally, we evaluated the joint associations of diet quality (adherence to the Mediterranean diet and Alternative Healthy Eating Index [AHEI] score) and olive oil consumption with the risk of dementia-related mortality. We also estimated the difference in the risk of dementia-related mortality when other dietary fats were substituted with an equivalent amount of olive oil.

Analyses were performed in 2 large US prospective cohorts: the Nurses’ Health Study I (NHS) and the Health Professionals Follow-Up Study (HPFS). The NHS was initiated in 1976 and recruited 121 700 US female registered nurses aged 30 to 55 years. 12 The HPFS was established in 1986 and included 51 525 male health professionals aged 40 to 75 years. 13 The cohorts have been described elsewhere. 12 , 13 Lifestyle factors and medical history were assessed biennially through mailed questionnaires, with a follow-up rate greater than 90%. Baseline for this analysis was 1990, which is when the food frequency questionnaires (FFQs) first included information on olive oil consumption.

Participants with a history of cardiovascular disease (CVD) or cancer at baseline, with missing data on olive oil consumption, or who reported implausible total energy intakes (<500 or >3500 kcal/d for women and <800 or >4200 kcal/d for men) were excluded. The completion of the questionnaire self-selected cognitively highly functioning women and men. In total, 60 582 women and 31 801 men were included. The study protocol was approved by the institutional review boards of the Brigham and Women’s Hospital and Harvard T.H. Chan School of Public Health, which deemed the participants’ completion of the questionnaire to be considered as implied consent. This report followed the Strengthening the Reporting of Observational Studies in Epidemiology ( STROBE ) reporting guideline.

Dietary intake was measured using a validated greater than 130-item FFQ administered in 1990 and every 4 years thereafter. The validity and reliability of the FFQ have been described previously. 14 Participants were asked how frequently they consumed specific foods, including types of fats and oils used for cooking or added to meals in the past 12 months. Total olive oil intake was determined by summing up answers to 3 questions related to olive oil consumption (ie, olive oil used for salad dressings, olive oil added to food or bread, and olive oil used for baking and frying at home). The equivalent of 1 tablespoon of olive oil was considered to be 13.5 g. Intakes of other fats and nutrients were calculated using the United States Department of Agriculture and Harvard University Food Composition Database, 15 and biochemical analyses. The nutritional composition of olive oil and other types of fat, as well as trends of types of fat intake in the NHS and HPFS, have been reported previously. 11

Adherence to the Mediterranean diet was assessed using a modified version of the 9-point Alternative Mediterranean index (AMED) score. 16 Adherence to the AHEI (0-110), previously associated with lower risk of chronic disease, was also computed. 17 Higher scores indicated better overall diet quality.

The apolipoprotein E ε4 ( APOE ε4 ) allele is known to interfere with lipid and glucose metabolism such that it increases the risk of dementia. 18  APOE genotyping was conducted in a subset of 27 296 participants. Blood samples were collected between 1989 and 1990 in the NHS and between 1993 and 1995 in the HPFS. NHS participants who had not provided blood samples were invited to contribute buccal samples from 2002 to 2004. DNA was extracted with the ReturPureGene DNA Isolation Kit (Gentra Systems). The APOE genotype was determined using a Taqman Assay (Applied Biosystems) 19 in 5069 participants, and through imputation from multiple genome-wide association studies, 20 which has shown high accuracy, 20 in the remaining subset.

Deaths were ascertained from state vital statistics records and the National Death Index or by reports from next of kin or the postal authorities. The follow-up for mortality exceeded 98% in these cohorts. Dementia deaths were determined by physician review of medical records, autopsy reports, or death certificates. Dementia deaths were those in which dementia was listed as the underlying cause of death, or as a contributing cause of death, or as reported by the family, in the absence of a more likely cause. The International Classification of Diseases, Eighth Revision (ICD-8) was used in the NHS and ICD-9 in the HPFS, which were the revisions used at the inception of those cohorts. Dementia deaths included codes 290.0 (senile dementia, simple type), 290.1 (presenile dementia), and 331.0 (Alzheimer disease). To test the validity of the dementia mortality outcome, we examined the likelihood of dementia mortality by APOE ε4 allelic dosage (eTable 1 in Supplement 1 ). 18 A composite outcome was also created including both participants who reported having dementia during follow-up and later died, with those who had dementia reported on their death certificate.

Participants completed biennial questionnaires reporting updates on body weight, smoking, physical activity, multivitamin use, menopausal status, and postmenopausal hormone use in women, family history of dementia, self-report of chronic diseases, and ancestry. History of depression was identified based on antidepressive medication use and self-report of depression. Socioeconomic status (SES) was established through a composite score derived from home address details and various factors such as income, education, and housing; the composite score methods are described in a previous report. 21 Body mass index (BMI) was obtained by dividing the weight in kilograms by the height in meters squared.

In each cohort, age-stratified Cox proportional hazard models were used to evaluate the association of olive oil intake with dementia-related mortality. Participant person-time was calculated from baseline until end of follow-up (June 30, 2018, in NHS; January 31, 2018, in HPFS), loss to follow-up, or death, whichever came first. The cumulative average (mean) of olive oil intake from all available FFQs, from baseline until 2014 (or loss to follow-up or death), was used as the exposure. Because potential diet modifications following cancer or CVD diagnosis may not represent long-term diet, we ceased updating dietary variables upon report of these conditions. For missing covariates, we carried forward nonmissing values from previous questionnaires and assigned median values for continuous variables.

Participants were categorized by olive oil intake frequency: never or less than once per month (reference group), greater than 0 to less than or equal to 4.5 g/d, greater than 4.5 g/d to less than or equal to 7 g/d, and greater than 7 g/d. P values for linear trends were obtained using the Wald test on a continuous variable represented by the median intake of each category. Multivariable Cox proportional hazard models were used to estimate the hazard ratios (HRs) and 95% CIs for dementia mortality according to categories of olive oil intake, separately in each cohort. Participants were censored at death from causes other than dementia. Model 1 was stratified for age and calendar time. Multivariable model 2 was adjusted for Southern European/Mediterranean ancestry, married, living alone, smoking, alcohol intake, physical activity, multivitamin use, history of hypertension and hypercholesterolemia, in women postmenopausal status and menopausal hormone use, total energy intake, family history of dementia, history of depression, census SES, and BMI. Multivariable model 3 was further adjusted for intake of red meat, fruits and vegetables, nuts, soda, whole grains, and trans-fat, all indicative of diet quality.

In a secondary analysis we used the composite outcome for dementia-related deaths. We also repeated the main analysis in the genotyping subsample. We carried out mediation analyses to calculate the percentage of the association between olive oil intake and dementia-related mortality that is attributable to CVD, hypercholesterolemia, hypertension, and diabetes. We also performed stratified analyses by prespecified subgroups (eMethods in Supplement 1 ).

A joint analysis was performed to test whether olive oil intake (never or <1/mo, >0 to ≤7g/d, and >7g/d) and the AMED or the AHEI score (tertiles) combined as the exposure was associated with dementia mortality. In substitution analyses, we assessed the risk of dementia-related mortality by replacing 5 g/d of different fat sources, including margarine, mayonnaise, butter, and a combination of other vegetable oils (corn, safflower, soybean, and canola), with olive oil. Both continuous variables as 5-g/d increments were included in a multivariable model 3, mutually adjusted for other types of fat. The difference in the coefficients obtained for olive oil and the substituted fat provided the estimated HR and 95% CI for substituting 5 g/d of olive oil for an equivalent amount of the other fats.

Several exploratory sensitivity analyses were performed including a 4-year lagged analysis, analyses adjusting for other covariates, a cause-specific competing risk model and analyses excluding participants who self-reported having dementia at baseline (n = 12) (eMethods in Supplement 1 ). Analyses were performed from May 2022 to July 2023 using SAS version 9.4 (SAS Institute). All statistical tests were 2-sided with an α = .05.

Over 2 183 095 person-years of follow-up, this study documented a total of 4751 dementia deaths (3473 in NHS and 1278 in HPFS; 37 649 total deaths). Among 92 383 participants included at baseline in 1990, 60 582 (65.6%) were women, and the mean (SD) age was 56.4 (8.0) years. Mean (SD) olive oil intake was 1.3 (2.5) g/d in both NHS and HPFS; the mean (SD) adherence score for the Mediterranean diet was 4.5 (1.9) points in the NHS and 4.2 (1.9) points in the HPFS; and the mean (SD) AHEI diet quality score was 52.5 (11.1) points in the NHS and 53.4 (11.6) points in the HPFS.

Table 1 shows baseline characteristics of participants categorized by total olive oil intake. Participants with a higher olive oil intake (>7 g/d) at baseline had an overall higher caloric intake, but not a higher BMI, had better diet quality, had higher alcohol intake, were more physically active, and were less likely to smoke compared with those never consuming olive oil or less than once per month ( Table1 ). Individuals who were homozygous for the APOE ε4 allele were 5.5 to 9.4 times more likely to die with dementia compared with noncarriers for the APOE e4 allele (χ 2  P  < .001) (eTable 1 in Supplement 1 ).

Olive oil intake was inversely associated with dementia-related mortality in age-stratified and multivariable-adjusted models ( Table 2 ). Compared with participants with the lowest olive oil intake, the pooled HR for dementia-related death among participants with the highest olive oil intake (>7 g/d) was 0.72 (95% CI, 0.64-0.81), after adjusting for sociodemographic and lifestyle factors. The association between each 5-g increment in olive oil consumption with dementia-related death was also inverse and significant in the pooled analysis. The multivariable-adjusted HR for dementia-related death for the highest compared with the lowest olive oil intake (>7 g/d) was 0.67 (95% CI, 0.59-0.77) for women and 0.87 (95% CI, 0.69-1.09) for men ( Table 2 ). Olive oil intake in 5-g increments was inversely associated with dementia-related mortality in women (HR, 0.88 [95% CI, 0.84-0.93]), but not in men (HR, 0.96 [95% CI, 0.88-1.04]). Analyses remained consistent when using the composite outcome for death with dementia (eTable 2 in Supplement 2 ). In the genotyping subsample, the results remained unchanged after further adjusting for the APOE ε4 allelic genotype (multivariable-adjusted pooled HR comparing high vs low olive oil intake, 0.66 [95% CI, 0.54-0.81]; P for trend < .001) (eTable 4 in Supplement 1 ). Pooled mediation analyses found that CVD, hypercholesterolemia, hypertension, and diabetes did not significantly attenuate the association (unchanged HRs with and without adjusting for the intermediate; data not shown).

In joint analyses, participants with the highest olive oil intake had a lower risk for dementia-related mortality, irrespective of their AMED score (28% to 34% lower risk compared with participants in the combined low olive oil and high AMED) ( Figure 1 A; eTable 3 in Supplement 1 ) and of their AHEI (27% to 38% lower risk compared with participants with low olive oil and high AHEI) ( Figure 1 B; eTable 3 in Supplement 1 ).

Replacing 5 g/d of mayonnaise with 5 g/d of olive oil was associated with a 14% (95% CI, 7%-20%) lower risk of dementia-related mortality in pooled multivariable-adjusted models ( Figure 2 ). As for the substitution of 5 g/d of margarine with the equivalent amount of olive oil, we estimated an 8% (95% CI, 4%-12%) lower risk. Substitutions of other vegetable oils or butter with olive oil were not statistically significant.

Exploratory subgroup analyses (eFigure in Supplement 1 ) showed associations between higher olive oil intake and lower risk of dementia-related mortality across most subgroups. No statistically significant associations were found in participants with a family history of dementia, living alone, using a multivitamin, and in non– APOE ε4 carriers. Results from exploratory sensitivity analyses (eTables 5-8 in Supplement 1 ) were comparable with the findings from the main analysis (eResults in Supplement 1 ).

In 2 large US prospective cohorts of men and women, we found that participants who consumed more than 7 g/d of olive oil had 28% lower risk of dying from dementia compared with participants who never or rarely consumed olive oil. This association remained significant after adjustment for diet quality scores including adherence to the Mediterranean diet. We estimated that substituting 5 g/d of margarine and mayonnaise with olive oil was associated with significantly lower dementia-related death risk, but not when substituting butter and other vegetable oils. These findings provide evidence to support dietary recommendations advocating for the use of olive oil and other vegetable oils as a potential strategy to maintain overall health and prevent dementia.

In the NHS and HPFS, a lower risk of neurodegenerative disease mortality, including dementia mortality, was observed with higher olive oil consumption (HR, 0.81 [95% CI, 0.78-0.84]). 11 Evidence that pertains to cognitive decline or incident dementia is more widely available than it is for dementia mortality. 6 , 22 In the French Three-City Study (n = 6947), participants with the highest olive oil intake were 17% (95% CI, 1%-29%) less likely to experience a 4-year cognitive decline related to visual memory, but no association was found for verbal fluency (odds ratio [OR], 0.85 [95% CI, 0.70-1.03]). 22 Furthermore, participants with a higher intake of olive oil (moderate or intensive vs never) had a lower risk of verbal fluency and visual memory cognitive impairment. Potential sex differences were not investigated. In the PREDIMED trial, which supplemented a Mediterranean-style diet with extra-virgin olive oil (1 L/wk/household) or nuts (30 g/d), 23 the authors investigated cognitive effects and status in 285 and 522 cognitively healthy participants using global and in-depth neuropsychological battery testing. Although the study was not originally designed for cognitive outcomes and the effect of olive oil cannot be isolated, after 6.5 years, the olive oil group exhibited improved cognitive performance in verbal fluency and memory tests compared with a low-fat diet (control), and they were less prone to develop mild cognitive impairment (OR, 0.34 [95% CI, 0.12-0.97]; n = 285). 6 Global cognitive performance was higher in both the olive oil and the nut groups compared with the control post trial (n = 522). 8 These studies were conducted in Europe, in populations with typically higher olive oil intake compared with US populations.

Observational studies and some trials have consistently found associations between following diets such as the Mediterranean, DASH, MIND, and AHEI, and prudent patterns to healthier brain structure, 24 reduced cognitive impairment and Alzheimer risk, and improved cognitive function. 4 In our study, those with the highest olive oil intake (>7 g/d) had the lowest dementia-related death risk compared with those with minimal intake (never or less than once per month), regardless of diet quality. This highlights a potentially specific role for olive oil. Still, the group with both high AHEI scores and high olive oil intake exhibited the lowest dementia mortality risk (HR, 0.68 [95% CI, 0.58-0.79]; reference: low AHEI score and low olive oil intake), suggesting that combining higher diet quality with higher olive oil intake may confer enhanced benefit.

Olive oil consumption may lower dementia mortality by improving vascular health. 18 Several clinical trials support the effect of olive oil in reducing CVD via improved endothelial function, coagulation, lipid metabolism, oxidative stress, platelet aggregation and decreased inflammation. 25 Nonetheless, the results of our study remained independent of hypertension and hypercholesterolemia. Mild cognitive impairment, Alzheimer disease, and related dementias were associated with abnormal blood brain barrier permeability, possibly allowing the crossing of neurotoxic molecules into the brain. 26 Mechanistical evidence from animal 27 - 29 and human studies 9 , 30 have shown that phenolic compounds in olive oil, particularly extra-virgin olive oil, may attenuate inflammation, oxidative stress and restore blood brain barrier function, thereby reducing brain amyloid-β and tau-related pathologies and improving cognitive function. However, incident CVD, hypercholesterolemia, hypertension, and diabetes were not significant mediators of the association between olive oil intake and dementia-related death in our study.

The association was significant in both sexes but did not remain in men after full adjustment of the model. Some previous research has reported cognitive-related sex differences. Evidence from trials also showed sex- and/or gender-specific responses to lifestyle interventions for preventing cognitive decline, possibly due to differences in brain structure, hormones (sex) and social factors (gender). 31 Olive oil intake may be protective of dementia and related mortality, particularly in women. Nonetheless, we did not observe significant heterogeneity or interaction of cohort by olive oil intake on the risk of fatal dementia. Sex and gender differences should be carefully considered in future studies examining the association or effect of olive oil on cognitive-related outcomes to improve our understanding.

We found that using olive oil instead of margarine and mayonnaise, but not butter and other vegetable oils, was associated with a lower risk of dementia-related death. At the time of the study, margarine and mayonnaise contained considerable levels of hydrogenated trans-fats. The latter were strongly associated with all-cause mortality, CVD, type 2 diabetes, and dementia, 32 , 33 which may explain the lower dementia-related death risk observed when replacing it with olive oil. The US Food and Drug Administration banned manufacturers from adding partially hydrogenated oils to foods in 2020. 34 Future studies examining intake of trans-fat–free margarine will be informative. Although the substitution of butter with olive oil was found to be associated with a lower risk of type 2 diabetes, CVD, and total mortality, 11 we did not find an association with the risk of dementia mortality. Although these previous studies did not examine the associations for butter per se, intake of regular fat dairy products, including cheese, yogurt, and milk, was reported to be either not associated or inversely associated with lower cognitive function, cognitive decline, and dementia. 35 - 37

Our cohort analyses include several strengths, namely the long follow-up period and large sample size with a high number of dementia death cases. Also, we included genotyping of the APOE ε4 allele in a large subsample of participants to reduce potential confounding attributed to this well-known risk factor for Alzheimer disease. Additionally, our repeated diet measurements, weight, and lifestyle variables permitted us to account for long-term olive oil intake and confounding factors. Furthermore, the use of dietary cumulative average updates reduced random measurement error by considering within-person variations in intake.

This study has limitations. The possibility of reverse causation cannot be excluded due to the observational nature of our study. However, the 4-year lagged analysis results, consistent with the primary analysis, suggest that olive oil intake is predictive of dementia mortality rather than a consequence of premorbid dementia. While it is plausible that higher olive oil intake could be indicative of a healthier diet and higher SES, our results remained consistent after accounting for the latter. Despite adjusting for key covariates, residual confounding may remain due to unmeasured factors. Also, our study was conducted among health professionals. While this minimizes the potential confounding effects of socioeconomic factors and likely increases reporting due to a high level of education, this may also limit generalizability. Our population was predominantly of non-Hispanic White participants, limiting generalizability to more diverse populations. Additionally, we could not differentiate among various types of olive oil that differ in their polyphenols and other nonlipid bioactive compounds content.

This study found that in US adults, particularly women, consuming more olive oil was associated with lower risk of dementia-related mortality, regardless of diet quality. Substituting olive oil intake for margarine and mayonnaise was associated with lower risk of dementia mortality and may be a potential strategy to improve longevity free of dementia. These findings extend the current dietary recommendations of choosing olive oil and other vegetable oils to the context of cognitive health and related mortality.

Accepted for Publication: March 6, 2024.

Published: May 6, 2024. doi:10.1001/jamanetworkopen.2024.10021

Open Access: This is an open access article distributed under the terms of the CC-BY License . © 2024 Tessier AJ et al. JAMA Network Open .

Corresponding Authors: Anne-Julie Tessier, RD, PhD ( [email protected] ), and Marta Guasch-Ferré, PhD ( [email protected] ), Department of Nutrition, Harvard T.H. Chan School of Public Health, 655 Huntington Ave, Bldg 2, Boston, MA 02115.

Author Contributions: Drs Tessier and Guasch-Ferré had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.

Concept and design: Tessier, Chavarro, Hu, Willett, Guasch-Ferré.

Acquisition, analysis, or interpretation of data: Tessier, Cortese, Yuan, Bjornevik, Ascherio, Wang, Chavarro, Stampfer, Willett, Guasch-Ferré.

Drafting of the manuscript: Tessier.

Critical review of the manuscript for important intellectual content: Tessier, Cortese, Yuan, Bjornevik, Ascherio, Wang, Chavarro, Stampfer, Hu, Willett, Guasch-Ferré.

Statistical analysis: Tessier, Cortese, Wang, Willett, Guasch-Ferré.

Obtained funding: Chavarro, Stampfer, Hu, Guasch-Ferré.

Administrative, technical, or material support: Cortese, Yuan, Stampfer, Hu.

Supervision: Chavarro, Hu, Guasch-Ferré.

Conflict of Interest Disclosures: Dr Cortese reported a speaker honorarium from Roche outside the submitted work. Dr Ascherio reported receiving speaker honoraria from WebMD, Prada Foundation, Biogen, Moderna, Merck, Roche, and Glaxo-Smith-Kline. No other disclosures were reported.

Funding/Support: This study is supported by the research grant R21 AG070375 from the National Institutes of Health to Dr Guasch-Ferré. The NHS, NHSII and HPFS are supported by grants from the National Institutes of Health (UM1 CA186107, P01 CA87969, U01 CA167552, P30 DK046200, HL034594, HL088521, HL35464, HL60712). Dr Tessier is supported by the Canadian Institutes of Health Research (CIHR) Postdoctoral Fellowship Award. Dr Guasch-Ferré is supported the Novo Nordisk Foundation grant NNF23SA0084103.

Role of the Funder/Sponsor: The funders had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.

Data Sharing Statement: See Supplement 2 .

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• 09 May 2024

Cubic millimetre of brain mapped in spectacular detail

• Carissa Wong

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Rendering based on electron-microscope data, showing the positions of neurons in a fragment of the brain cortex. Neurons are coloured according to size. Credit: Google Research & Lichtman Lab (Harvard University). Renderings by D. Berger (Harvard University)

Researchers have mapped a tiny piece of the human brain in astonishing detail. The resulting cell atlas, which was described today in Science 1 and is available online , reveals new patterns of connections between brain cells called neurons, as well as cells that wrap around themselves to form knots, and pairs of neurons that are almost mirror images of each other.

The 3D map covers a volume of about one cubic millimetre, one-millionth of a whole brain, and contains roughly 57,000 cells and 150 million synapses — the connections between neurons. It incorporates a colossal 1.4 petabytes of data. “It’s a little bit humbling,” says Viren Jain, a neuroscientist at Google in Mountain View, California, and a co-author of the paper. “How are we ever going to really come to terms with all this complexity?”

Slivers of brain

The brain fragment was taken from a 45-year-old woman when she underwent surgery to treat her epilepsy. It came from the cortex, a part of the brain involved in learning, problem-solving and processing sensory signals. The sample was immersed in preservatives and stained with heavy metals to make the cells easier to see. Neuroscientist Jeff Lichtman at Harvard University in Cambridge, Massachusetts, and his colleagues then cut the sample into around 5,000 slices — each just 34 nanometres thick — that could be imaged using electron microscopes.

Jain’s team then built artificial-intelligence models that were able to stitch the microscope images together to reconstruct the whole sample in 3D. “I remember this moment, going into the map and looking at one individual synapse from this woman’s brain, and then zooming out into these other millions of pixels,” says Jain. “It felt sort of spiritual.”

A single neuron (white) shown with 5,600 of the axons (blue) that connect to it. The synapses that make these connections are shown in green. Credit: Google Research & Lichtman Lab (Harvard University). Renderings by D. Berger (Harvard University)

When examining the model in detail, the researchers discovered unconventional neurons, including some that made up to 50 connections with each other. “In general, you would find a couple of connections at most between two neurons,” says Jain. Elsewhere, the model showed neurons with tendrils that formed knots around themselves. “Nobody had seen anything like this before,” Jain adds.

The team also found pairs of neurons that were near-perfect mirror images of each other. “We found two groups that would send their dendrites in two different directions, and sometimes there was a kind of mirror symmetry,” Jain says. It is unclear what role these features have in the brain.

Proofreaders needed

The map is so large that most of it has yet to be manually checked, and it could still contain errors created by the process of stitching so many images together. “Hundreds of cells have been ‘proofread’, but that’s obviously a few per cent of the 50,000 cells in there,” says Jain. He hopes that others will help to proofread parts of the map they are interested in. The team plans to produce similar maps of brain samples from other people — but a map of the entire brain is unlikely in the next few decades, he says.

“This paper is really the tour de force creation of a human cortex data set,” says Hongkui Zeng, director of the Allen Institute for Brain Science in Seattle. The vast amount of data that has been made freely accessible will “allow the community to look deeper into the micro-circuitry in the human cortex”, she adds.

Gaining a deeper understanding of how the cortex works could offer clues about how to treat some psychiatric and neurodegenerative diseases. “This map provides unprecedented details that can unveil new rules of neural connections and help to decipher the inner working of the human brain,” says Yongsoo Kim, a neuroscientist at Pennsylvania State University in Hershey.

doi: https://doi.org/10.1038/d41586-024-01387-9

Shapson-Coe, A. et al. Science 384 , eadk4858 (2024).

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