how to cite author with phd

How to Reference a Person With a PhD

How to sign your name when you have a bachelor of science in criminal ....

As you have probably noticed, many authors of books and articles are learned individuals who have received doctorates. Therefore, you may sometimes find that you need to cite authors who have the suffix "Ph.D." listed after their names. However, if you listed "Ph.D." after the name of every author who had one, your term paper would quickly devolve into alphabet soup. Both American Psychological Association (APA) and Modern Language Association (MLA) styles agree on this point: never include the suffix "Ph.D." after an author's name when you are citing sources.

Omit the suffix "Ph.D." from the author's name when citing sources in your reference list. For example, a book authored by Jordan Jones, Ph.D. would be listed as being authored by Jordan Jones. In MLA style this would appear as: Jones, Jordan. In APA style, this would appear as: Jones, J.

Omit as well any titles such as "Ph.D." from the names of translators, editors, or any other names that might appear in your reference list entries.

Omit titles such as "Ph.D." from your in-text citations as well. Use only the last names of authors, editors and other persons in parenthetical citations. In MLA style, an in-text citation for the work of Jordan Jones, Ph.D. should appear as follows: (Jones 86). In APA, the same citation should appear as follows: (Jones, 2009, p. 86).

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How to Cite a Ph.D. Title at the End of a Name

According to the sixth edition of the "Publication Manual of the American Psychological Association" and the seventh edition of the "MLA Handbook for Writers of Research Papers," writers using either the APA or MLA documentation format should avoid using titles such as "Ph.D." by authors' names in the citations or references pages. However, these style guides, along with the 16th edition of "The Chicago Manual of Style" and AP style, do allow the use of such titles at the end of names in the text, when needed.

In Chicago and MLA style, a Ph.D. title is not included in the references, but it can be included in the text. In that case, the doctoral degree title at the end of a name appears after a comma but with no punctuation within the letters in the degree and both the "P" and the "D" should be capitalized.

For example: Steven Hammersmith, PhD.

AP style also does not cite the degree in the references, and it prefers a phrase instead of an abbreviation in the text, when possible.

For example: Jane Doe, who has a doctorate in chemistry.

When the preferred style is too cumbersome, such as when several people and their titles need to be identified, AP style requires a period between the two portions of the abbreviation: Ph.D.

The capitalization remains the same as in Chicago, however, as does the requirement for the comma between the name and the title.

APA is similar to AP style, with a period between the two portions of the abbreviation, and it also does not include the academic degree in the references.

Need help with a citation? Try our citation generator .

• Publication Manual of the American Psychological Association (6th edition); American Psychological Association
• MLA Handbook for Writers of Research Papers (7th edition); Modern Language Association
• Purdue Online Writing Lab: General Format
• Purdue Online Writing Lab: MLA Works Cited Page: General Format
• The Chicago Manual of Style (16th edition); University of Chicago Press Staff
• The Chicago Manual of Style Online: Abbreviations

Kristie Sweet has been writing professionally since 1982, most recently publishing for various websites on topics like health and wellness, and education. She holds a Master of Arts in English from the University of Northern Colorado.

Do the credentials or titles of authors I cite need to be given?

Note: This post relates to content in the eighth edition of the MLA Handbook . For up-to-date guidance, see the ninth edition of the MLA Handbook .

As the MLA Handbook notes (1.2), a title like  Dr. or  Sir should not be included before a name mentioned in the text and is usually unnecessary to include in your works-cited-list entry.

You might, however, explain the qualifications of an author in the body of your essay if they are helpful in making your point or refuting a claim:

Although many continue to deny the dangers of fossil fuel emissions, James E. Hansen, a climate scientist and the former head of the NASA Goddard Institute for Space Studies, argues that “[c]ontinued failure to phase out fossil fuel emissions will consign our children to a diminishing existence.”

Work Cited Hansen, James E. “The Constitutional Right to a Healthier Climate.”  The Boston Globe , 9 Mar. 2016, www.bostonglobe.com/opinion/2016/03/09/ the-constitutional-right-healthier-climate/0xTKyK1s5SaD0ne78YqRHL/ story.html.

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General Rule:

Author, A. A. (year). Title of doctoral dissertation or master’s thesis  (Publication No. #) [Doctoral dissertation or master’s thesis, Name of Institution Awarding the Degree]. Name of Database.

Davis, P. M. (2010). Access, readership, citations: A randomized controlled trial of scientific journal publishing . (Publication No.   3429815 )  [Doctoral dissertation, Cornell University].  ProQuest Dissertations and Theses Global.  

Author, A. A. (year). Title of doctoral dissertation or master’s thesis  [Doctoral dissertation or master’s thesis, Name of Institution]. Name of Website. URL

Buckman, A. (1997). MOOSE Crossing: Construction, community, and learning in a networked virtual world for kids [Doctoral dissertation, Massachusetts Institute of Technology]. DSpace@MIT.  https://dspace.mit.edu/handle/1721.1/33821

Author, A. A. (year). Title of doctoral dissertation or master’s thesis  [Unpublished doctoral dissertation or master’s thesis]. Name of Institution.

Long, R.P. (1972). A study of instructional objectives and methods for interpersonal communication. [Unpublished master’s thesis]. West Virginia University.

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Author Types

Authors 1 can include:

• an individual
• multiple people
• government agency/department
• institution
• corporation
• other types of organizations
• a combination of people and groups 

1. See pp. 285-286 in APA Seventh Edition  

Be careful when using a cite button or feature within the database you are searching in. These tools may not account for updated practices for citations styles.

Author Definition

The definition of author according to the American Psychological Association (2020) states,

"In a reference, the author refers broadly to the person(s) or group responsible for a work" (p. 285)

Follow these examples of APA style by number of authors:

• Two authors
• Three+ authors
• Twenty+ authors
• Group/organization/institution as author

Reference page :

• Invert author's name (last name first) followed by first initials. Separate an author's last name from first initials with a comma. 
• Authors' first initials should be followed by a period. This applies to 1+ authors. 
• Use one space between initials. This applies to 1+ authors.
• Do not include titles or positions such as MS, PhD, MD, etc. 

Example: 

Tungate, M. (2011). Branded beauty: How marketing changed the way we look . Kogan Page.

Tungate (2011) wrote . . . . (p. 43).    OR    . . . . (Tungate, 2011, p. 43).

See p. 286-287 in APA Seventh Edition

Two Authors

Reference page:

• Use a comma to separate first author's initials with additional author names. This applies to 2+ authors
• Separate authors' names with commas with the last author's name preceded with an ampersand (i.e. "&"). This applies for when there are between 2-19 authors

Manley, A., & Whitaker, L. (2011). Wii-learning: Using active video games to enhance the learning experience of undergraduate sport

psychology students. Sport & Exercise Psychology Review, 7 (2), 45–55.

• Use "and" between authors’ names when citing in the sentence
• In parentheses, use "&" between authors' names

Manley and Whitaker (2011) . . . . (p. 53).    OR     . . . . (Manley & Whitaker, 2011, p. 53).

See p. 286-287 in  APA Seventh Edition

Three+ Authors

VanFleet, R., Sywulak, A. E., & Sniscak, C. C. (2010). Child-centered play therapy . Guilford Press.

In-text:  

• List first author's name followed by "et al." (the period goes after "al") even if citing in the text the first time.  Unless when multiple authors leads to ambiguity such as when there are two citations with similar  authors' names .

VanFleet et al. (2010) . . . . (p. 245).    OR     . . . . (VanFleet et al., 2010, p. 245).

See pp. 266-267 in APA Seventh Edition

Twenty+ Authors

• List the first 19 authors' names and follow the 19th author's name with an ellipsis. Put a comma after the nineteenth author's name.
• After the ellipsis list the last author's inverted name. 

Example:  

Aslam, S., Courtwright, A. M., Koval, C., Lehman, S.M., Morales, S., Furr, C. L., Rosas, F., Brownstein, M. J., Fackler, J.R.,Sisson, B. M., Biswas, B., Henry, M., Luu, T., Bivens, B. N., Hamilton, T., Duplessis, C., Logan, C., Law, N., Yung, G. , ... Schooley, R. T. (2019). Early clinical experience of bacteriophage therapy in 3 lung transplant recipients.  American Journal of Transplantation   19 (9), 2631-2639. https://doi.org/10.1111/ajt.15503, 10.1111/ajt.15503

Aslam et al. (2004) . . . . (p. 33).   OR     . . . . (Aslam et al., 2004, p. 33)

See pp. 286, 317 in APA Seventh Edition  

Group/Association/Organization/Institution/Corporation As Author

• For some resources there are layers of government agencies involved in the publication of the resource. List the most specific agency responsible, and then use the overseeing body/institution/department as the source. 

National Institute of Nursing Research. (2016). NINR Strategic Plan:Advancing Science, Improving Lives.  U.S. Department of Health and Human Services, National Institutes of Health.  https://www.ninr.nih.gov/sites/files/docs/NINR_StratPlan2016_reduced.pdf . 

• You can abbreviate group/institutional authors' names. There are a few stipulations of how to format this both in-text and for the reference page. Generally, provide the full name of group author name upon citing in parenthetical or narrative citations. Do not put the abbreviated version of the name in the reference list. 

Narrative citation

The National Center for Biotechnology Information (NCBI, 2020) described...

Parenthetical  citation 

( National Center for Biotechnology Information [NCBI], 2020)

See pp. 268, 288 in APA Seventh Edition

• If no author is present, use the title element in place of the author’s name.
• If the title is lengthy, it may be shortened in the in-text reference 
• Use “Anonymous” in place of the author only if the source author is designated as such.

Gas main replacements continue. (2012, August 9). Medicine Hat News , p. A4.

In-text Example:

“Gas Main Replacements Continue” (2012) states . . . (p. A3).   OR    . . . . (“Gas Main Replacements Continue,” 2002, p. A3).

See p. 289 in APA Seventh Edition

APA 7th Edition Manual

American Psychological Association . (2020).  Publication manual of the American Psychological Association  (7th ed.). https://doi.org/10.1037/000165-000

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Dissertation & Doctoral Project Formatting & Clearance: Formatting Author Information

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Citing Authors

The APA Manual (6th ed.) offers a great table on basic citation styles (see APA, Table 6.1, p. 177).  Author formatting is not always limited to basic styles.  Scroll down for additional examples.

Two citations with same author and same year

When two sources have the same author surname and publication year, use this format for in-text citation:

Two references that have the same year and several of the same authors (see APA, section 6.12, p. 175; APA Style Blog , "Et al.: When and How, Comments Section)

When a source that has three, four, or five authors is cited , all authors are included the first time the source is cited. When that source is cited again , the first author’s surname and “et al.” are used.

• First time: (Payne, Bergin, Bielema, & Jenkins, 1991).
• Subsequent usages: Payne et al. (1991) showed that …

When a source that has six or more authors is cited , the first author’s surname and “et al.” are used every time the source is cited (including the first time).

Group Authors

APA recognizes that corporations, associations, government agencies, and study groups can serve as authors (see APA, section 6.13, p.176).  These group authors are spelled out in every text citation.  Some group author names are spelled out in the first in text citation, and then abbreiviated in the second and subsequent citations .  Group author names should be abbreviated when the name is too long. 

General rule : always give enough information about the group name in the citation so that the reader can locate it in the reference list.

Examples (taken from APA, Table 6.1, p. 177):

No Author(s)/Anonymous)

No Author(s)

When you cannot identify the author(s) of the source, use the first few words of the reference list entry, usually the title, and the year for the in text citation.  Titles of articles, chapters, and web pages need double quotation marks.  Italicize titles of periodicals, books, brochures, and reports (see APA, section 6.15, p. 176; APA Style Blog , "The Generic Reference: Who?"; or APA Style FAQ , "How Do You Reference a Webpage that Lists No Author").

dark chocolate prevents heart disease ("Chocolate Lovers," 2007)

the report Chocolate and Your Heart (2007)

Anonymous Author (see APA, section 6.15, p. 177)

If a work is credited to an "Anonymous" author, cite the word Anonymous  and the date in the text citation:

(Anonymous, 2012)

Multiple Authors for Separate Sources

Different sources may be cited when referring to several representative sources used for a key point . For in text citations, l ist authors in alphabetical order within the same parentheses, and s eparate names with semicolons.   If a work is in press, put that after the years of publication (see APA, section 6.16, pp. 177 - 178).

Multiple works by same author

Arrange by year of publication and place in-press citations at the end.

Sleep deprivation causes nausea (Rogers, 2001, 2005)

Studies (Johnson, 2001, 2002, in press) indicate that

Same author, same publication date

Arrange same publications with suffixes a, b, c, etc. after each year.  These suffixes are mentioned in the reference list as well.

Multiple reports (Stein, 2005a, 2005b; Weinberger & Adams, 2007a, 2007b, in press-a, in press-b).

Multiple works, different authors in the same parentheses

Arrange in alphabetical order by first author's surname.

Writing in APA style is difficult at first (Meyer, 2007; Robinson, 2009)

A major citation can be separated from other citations within a parenthetical citation by inserting the phrase see also

(Johnson, 2001; see also Rogers, 2005; Weinberger & Adams, 2007)

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In APA style, you use parenthetical citations within the text of your paper to credit your sources, to show how recently your sources were published, and to refer your reader to a more detailed citation of the source in the reference list at the end of your paper. You should use parenthetical citations when you paraphrase, quote, or make any reference to another author's work. A parenthetical citation in APA style includes the author's last name as well as the year in which the work was published, with a comma between them. If you are referring directly to a specific page in the source, you should also include the page number in your parenthetical citation. APA requires you to cite page numbers when you are quoting directly from the source. If you are paraphrasing, which is more common in the social sciences, you generally do not need to include a page number. If you have questions about whether you should include page numbers when citing in APA, you should consult your instructor.

If you mention the author's name and/or the year of publication in the sentence preceding the citation, you do not need to include them in the parenthetical citation. When you name the author in the sentence, you should include the publication year in parentheses right after the author’s name—do not wait until the end of the sentence to provide that information.

When you include a parenthetical citation at the end of a sentence, the punctuation for your sentence appears after the citation.

Citing author and date in a parenthetical citation

When you don’t mention either the author or the date of publication in your sentence, you should include both the author and the year, separated by a comma, in the parenthetical citation. 

Colleges and universities need to create policies that foster inclusion for low-income students (Jack, 2019).         

Citing when author’s name is mentioned in body of paper

When you mention the author’s name in your sentence, the year of publication should immediately follow the author’s name.

Anthony Jack’s (2019) study of low-income students on an elite college campus revealed that these schools are often unprepared to support the students they admit.

Jack (2019) studied the ways low-income students experience elite college campuses.

Citing page numbers

When you cite a direct quote from the source or paraphrase a specific point from the source, you should include the page number in the parenthetical citation at the end of the sentence. When you refer to a specific page or pages of the text, first list the year of publication and then list "p." followed by the page number or "pp." followed by the range of pages. If you refer to a specific chapter, indicate that chapter after the year.              

The author contends that “higher education in America is highly unequal and disturbingly stratified” (Jack, 2019, p. 4).

Jack (2019) contends that “higher education in America is highly unequal and disturbingly stratified” (p. 4).

Citing sources with more than one author

When you cite a source that has two authors, you should separate their names with an ampersand in the parenthetical citation.

The authors designed a study to determine if social belonging can be encouraged among college students (Walton & Cohen, 2011). 

If a work has three or more authors , you should only include the first author's name followed by et al. ( Et al. is the shortened form of the Latin et alia , which means “and others.”)

The implementation of postpartum contraceptive programs is both costly and time consuming (Ling et al., 2020).

Attributing a point to more than one source  

To attribute a point or idea to multiple sources, list them in one parenthetical citation, ordered alphabetically by author and separated by semicolons. Works by the same author should be ordered chronologically, from oldest to most recent, with the publication dates separated by commas.

Students who possess cultural capital, measured by proxies like involvement in literature, art, and classical music, tend to perform better in school (Bourdieu & Passeron, 1977; Dumais, 2002; Orr, 2003).

Citing multiple works by the same author 

If your reference list includes multiple works by the same author in the same year, identify them in your parenthetical citations and in your reference list by a lowercase letter after the year, assigning each letter in alphabetical order by the title of the work. When establishing the alphabetical order of works in your reference list, do not count the words "A" or "The" when they appear as the first word in a title.

One union-endorsed candidate publicly disagreed with the teachers' union on a number of issues (Borsuk, 1999a).

Citing multiple authors with the same last name        

If your reference list includes sources by multiple authors with the same last name, list each author's initials before their last name, even when the works were published in different years.

The question of whether a computer can be considered an author has been asked for longer than we might expect (B. Sobel, 2017).

Citing when no author is listed           

To refer to a work that is listed in your reference list by title rather than by author, cite the title or the first few words of the title.

The New York Times painted a bleak picture of the climate crisis (“Climate Change Is Not Negotiable,” 2022).

Citing when no date is listed

If the work you are citing has no date listed, you should put “n.d.” for “no date” in the parenthetical citation.

Writing research papers is challenging (Lam, n.d.). 

Citing a specific part of a source that is not a page number

To refer to a specific part of a source other than page number, add that after the author-date part of your citation. If it is not clear whether you are referring to a chapter, a paragraph, a time stamp, or a slide number, or other labeled part of a source, you should indicate the part you are referring to (chapter, para., etc.).

In the Stranger Things official trailer, the audience knows that something unusual is going to happen from the moment the boys get on their bicycles to ride off into the night (Duffer & Duffer, 0:16).

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A Quick Guide to Harvard Referencing | Citation Examples

Published on 14 February 2020 by Jack Caulfield . Revised on 15 September 2023.

Referencing is an important part of academic writing. It tells your readers what sources you’ve used and how to find them.

Harvard is the most common referencing style used in UK universities. In Harvard style, the author and year are cited in-text, and full details of the source are given in a reference list .

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Table of contents

Harvard in-text citation, creating a harvard reference list, harvard referencing examples, referencing sources with no author or date, frequently asked questions about harvard referencing.

A Harvard in-text citation appears in brackets beside any quotation or paraphrase of a source. It gives the last name of the author(s) and the year of publication, as well as a page number or range locating the passage referenced, if applicable:

Note that ‘p.’ is used for a single page, ‘pp.’ for multiple pages (e.g. ‘pp. 1–5’).

An in-text citation usually appears immediately after the quotation or paraphrase in question. It may also appear at the end of the relevant sentence, as long as it’s clear what it refers to.

When your sentence already mentions the name of the author, it should not be repeated in the citation:

Sources with multiple authors

When you cite a source with up to three authors, cite all authors’ names. For four or more authors, list only the first name, followed by ‘ et al. ’:

Sources with no page numbers

Some sources, such as websites , often don’t have page numbers. If the source is a short text, you can simply leave out the page number. With longer sources, you can use an alternate locator such as a subheading or paragraph number if you need to specify where to find the quote:

Multiple citations at the same point

When you need multiple citations to appear at the same point in your text – for example, when you refer to several sources with one phrase – you can present them in the same set of brackets, separated by semicolons. List them in order of publication date:

Multiple sources with the same author and date

If you cite multiple sources by the same author which were published in the same year, it’s important to distinguish between them in your citations. To do this, insert an ‘a’ after the year in the first one you reference, a ‘b’ in the second, and so on:

Prevent plagiarism, run a free check.

A bibliography or reference list appears at the end of your text. It lists all your sources in alphabetical order by the author’s last name, giving complete information so that the reader can look them up if necessary.

The reference entry starts with the author’s last name followed by initial(s). Only the first word of the title is capitalised (as well as any proper nouns).

Sources with multiple authors in the reference list

As with in-text citations, up to three authors should be listed; when there are four or more, list only the first author followed by ‘ et al. ’:

Reference list entries vary according to source type, since different information is relevant for different sources. Formats and examples for the most commonly used source types are given below.

• Entire book
• Book chapter
• Translated book
• Edition of a book

Journal articles

• Print journal
• Online-only journal with DOI
• Online-only journal with no DOI
• General web page
• Online article or blog
• Social media post

Sometimes you won’t have all the information you need for a reference. This section covers what to do when a source lacks a publication date or named author.

No publication date

When a source doesn’t have a clear publication date – for example, a constantly updated reference source like Wikipedia or an obscure historical document which can’t be accurately dated – you can replace it with the words ‘no date’:

Note that when you do this with an online source, you should still include an access date, as in the example.

When a source lacks a clearly identified author, there’s often an appropriate corporate source – the organisation responsible for the source – whom you can credit as author instead, as in the Google and Wikipedia examples above.

When that’s not the case, you can just replace it with the title of the source in both the in-text citation and the reference list:

Harvard referencing uses an author–date system. Sources are cited by the author’s last name and the publication year in brackets. Each Harvard in-text citation corresponds to an entry in the alphabetised reference list at the end of the paper.

Vancouver referencing uses a numerical system. Sources are cited by a number in parentheses or superscript. Each number corresponds to a full reference at the end of the paper.

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.

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. ’

Though the terms are sometimes used interchangeably, there is a difference in meaning:

• A reference list only includes sources cited in the text – every entry corresponds to an in-text citation .
• A bibliography also includes other sources which were consulted during the research but not cited.

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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. (2023, September 15). A Quick Guide to Harvard Referencing | Citation Examples. Scribbr. Retrieved 9 April 2024, from https://www.scribbr.co.uk/referencing/harvard-style/

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How to cite a PhD thesis in AMA

To cite a phd thesis in a reference entry in AMA style 11st edition include the following elements:

• Author(s) of the thesis: Give the last name, and initials of up to six authors (e.g. Watson J). For more authors only the first three are listed, followed by et al.
• Title of the PhD thesis: Italicize the title and capitalize the first letter of each major word.
• Location: Give the name of the city in which the publishing entity was located at the time of publication.
• Name of the degree awarding institution: Give the name of the institution.
• Year of publication: Give the year of publication.

Here is the basic format for a reference list entry of a phd thesis in AMA style 11st edition:

Author(s) of the thesis . Title of the PhD thesis . [PhD thesis]. Location : Name of the degree awarding institution ; Year of publication .

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

A PhD thesis by one author

Confait MF . Maximising the contributions of PHD graduates to national development: the case of the Seychelles . [ PhD thesis ]. Joondalup, Australia : Edith Cowan University ; 2018 .

Bowkett D . Investigating the ligandability of plant homeodomains . [ PhD thesis ]. London, UK : University of Oxford ; 2015 .

This citation style guide is based on the AMA Manual of Style (11 th edition).

More useful guides

• Citation Help for AMA: Master's Thesis or Project
• AMA Manual of Style: Theses and Dissertations

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APA (American Psychological Association) style is most commonly used to cite sources within the social sciences. This resource, revised according to the 6 th edition, second printing of the APA manual, offers examples for the general format of APA research papers, in-text citations, endnotes/footnotes, and the reference page. For more information, please consult the Publication Manual of the American Psychological Association , (6 th ed., 2 nd printing).

Note:  This page reflects APA 6, which is now out of date. It will remain online until 2021, but will not be updated. The equivalent APA 7 page can be found here .

APA style has a series of important rules on using author names as part of the author-date system. There are additional rules for citing indirect sources, electronic sources, and sources without page numbers.

Citing an Author or Authors

A Work by Two Authors: Name both authors in the signal phrase or in parentheses each time you cite the work. Use the word "and" between the authors' names within the text and use the ampersand in parentheses.

A Work by Three to Five Authors: List all the authors in the signal phrase or in parentheses the first time you cite the source. Use the word "and" between the authors' names within the text and use the ampersand in parentheses.

In subsequent citations, only use the first author's last name followed by "et al." in the signal phrase or in parentheses.

Six or More Authors: Use the first author's name followed by et al. in the signal phrase or in parentheses.

Unknown Author: If the work does not have an author, cite the source by its title in the signal phrase or use the first word or two in the parentheses. Titles of books and reports are italicized; titles of articles, chapters, and web pages are in quotation marks. APA style calls for capitalizing important words in titles when they are written in the text (but not when they are written in reference lists).

Note : In the rare case the "Anonymous" is used for the author, treat it as the author's name (Anonymous, 2001). In the reference list, use the name Anonymous as the author.

Organization as an Author: If the author is an organization or a government agency, mention the organization in the signal phrase or in the parenthetical citation the first time you cite the source.

If the organization has a well-known abbreviation, include the abbreviation in brackets the first time the source is cited and then use only the abbreviation in later citations.

Two or More Works in the Same Parentheses: When your parenthetical citation includes two or more works, order them the same way they appear in the reference list (viz., alphabetically), separated by a semi-colon.

Two or More Works by the Same Author in the Same Parentheses: When your parenthetical citation includes two or more works from the same author, list the years of publication in sequence, with the earliest first. Provide in-press citations last. Only list authors' surnames once for each list of dates. 

Following this pattern, multiple works from multiple authors can be contained within a single parenthetical. Separate authors' sources with a semicolon. Note, however, that the authors' names should be provided in the order they appear in the reference list regardless of when their sources were published.

Authors With the Same Last Name: To prevent confusion, use first initials with the last names.

Two or More Works by the Same Author in the Same Year: If you have two sources by the same author in the same year, use lower-case letters (a, b, c) with the year to order the entries in the reference list. Use the lower-case letters with the year in the in-text citation.

Introductions, Prefaces, Forewords, and Afterwords: When citing an Introduction, Preface, Foreword, or Afterword in-text, cite the appropriate author and year as usual.

(Funk & Kolln, 1992)

Personal Communication: For interviews, letters, e-mails, and other person-to-person communication, cite the communicator's name, the fact that it was personal communication, and the date of the communication. Do not include personal communication in the reference list.

Citing Indirect Sources

If you use a source that was cited in another source, name the original source in your signal phrase. List the secondary source in your reference list and include the secondary source in the parentheses.

Note: When citing material in parentheses, set off the citation with a comma, as above. Also, try to locate the original material and cite the original source.

Electronic Sources

If possible, cite an electronic document the same as any other document by using the author-date style.

Unknown Author and Unknown Date: If no author or date is given, use the title in your signal phrase or the first word or two of the title in the parentheses and use the abbreviation "n.d." (for "no date").

Sources Without Page Numbers

When an electronic source lacks page numbers, you should try to include information that will help readers find the passage being cited. When an electronic document has numbered paragraphs, use the abbreviation "para." followed by the paragraph number (Hall, 2001, para. 5). If the paragraphs are not numbered and the document includes headings, provide the appropriate heading and specify the paragraph under that heading. Note that in some electronic sources, like webpages, people can use the "find" function in their browser to locate any passages you cite.

Note: Never use the page numbers of webpages you print out; different computers print webpages with different pagination.

Other Sources

The APA Publication Manual describes how to cite many different kinds of authors and content creators. However, you may occasionally encounter a source or author category that the manual does not describe, making the best way to proceed can be unclear.

In these cases, it's typically acceptable to apply the general principles of APA citation to the new kind of source in a way that's consistent and sensible. A good way to do this is to simply use the standard APA directions for a type of source that resembles the source you want to cite. For example, a sensible way to cite a virtual reality program would be to mimic the APA's guidelines for ordinary computer software .

You may also want to investigate whether a third-party organization has provided directions for how to cite this kind of source. For example, Norquest College provides guidelines for citing Indigenous Elders and Knowledge Keepers⁠ —an author category that does not appear in the APA Manual . In cases like this, it's a good idea to ask your instructor or supervisor whether using third-party citation guidelines might present problems.

In-text citation

Reference list.

• Artificial intelligence
• Audiovisual
• Books and chapters
• Conferences
• Course materials
• Government and business reports
• Medicine and health sources
• Music scores
• Tables and figures

Theses and dissertations

• Web and social media
• Other sources
• Print this page
• Other styles AGLC4 APA 7th Chicago 17th (A) Notes Chicago 17th (B) Author-Date Harvard MLA 9th Vancouver
• Referencing home

(Author's surname, Year)

This was seen in an Australian study (Couch, 2017). 

Couch (2017) suggests that…

• Go to  Getting started >  In-text citation  to view other examples such as multiple authors.

Published thesis

Author, A. A. (Year). Title of thesis [Type of thesis, Name of institution awarding degree]. Name of archive or site. https://xxxxxx

Stored in a database

Author, A. A. (Year). Title of thesis (Database Publication number, if assigned) [Type of thesis, Name of institution awarding degree]. Database Name.

Taffe, S. (2017).  The Federal Council for the Advancement of Aborigines and Torres Strait Islanders: The politics of inter-racial coalition in Australia, 1958–1973.  [Doctoral thesis, Monash University]. Bridges.  https://doi.org/10.4225/03/59d4482289ea4

Bozeman, A. Jr. (2007).  Age of onset as predictor of cognitive performance in children with seizure disorders  (Publication No. 3259752) [Doctoral dissertation, The Chicago School of Professional Psychology]. ProQuest Dissertations and Theses Global.

Unpublished thesis

Author, A. A. (Year).  Title of thesis or dissertation  [Unpublished Doctoral dissertation or Master's thesis]. Name of Institution.

Imber, A. (2003).  Applicant reactions to graduate recruitment and selection  [Unpublished Doctoral dissertation]. Monash University. 

For further guidance, see the APA Style website- Published Dissertation or Thesis , Unpublished Dissertation or Theses .

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• Last Updated: Mar 18, 2024 12:23 PM
• URL: https://guides.lib.monash.edu/apa-7

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• Knowledge Base
• Citing sources

How to Cite Sources | Citation Generator & Quick Guide

Citing your sources is essential in  academic writing . Whenever you quote or paraphrase a source (such as a book, article, or webpage), you have to include a  citation crediting the original author.

Failing to properly cite your sources counts as plagiarism , since you’re presenting someone else’s ideas as if they were your own.

The most commonly used citation styles are APA and MLA. The free Scribbr Citation Generator is the quickest way to cite sources in these styles. Simply enter the URL, DOI, or title, and we’ll generate an accurate, correctly formatted citation.

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Table of contents

When do you need to cite sources, which citation style should you use, in-text citations, reference lists and bibliographies.

Scribbr Citation Generator

Other useful citation tools

Citation examples and full guides, frequently asked questions about citing sources.

Citations are required in all types of academic texts. They are needed for several reasons:

• To avoid plagiarism by indicating when you’re taking information from another source
• To give proper credit to the author of that source
• To allow the reader to consult your sources for themselves

A citation is needed whenever you integrate a source into your writing. This usually means quoting or paraphrasing:

• To quote a source , copy a short piece of text word for word and put it inside quotation marks .
• To paraphrase a source , put the text into your own words. It’s important that the paraphrase is not too close to the original wording. You can use the paraphrasing tool if you don’t want to do this manually.

Citations are needed whether you quote or paraphrase, and whatever type of source you use. As well as citing scholarly sources like books and journal articles, don’t forget to include citations for any other sources you use for ideas, examples, or evidence. That includes websites, YouTube videos , and lectures .

Scribbr Citation Checker New

The AI-powered Citation Checker helps you avoid common mistakes such as:

• Missing commas and periods
• Incorrect usage of “et al.”
• Ampersands (&) in narrative citations
• Missing reference entries

Usually, your institution (or the journal you’re submitting to) will require you to follow a specific citation style, so check your guidelines or ask your instructor.

In some cases, you may have to choose a citation style for yourself. Make sure to pick one style and use it consistently:

• APA Style is widely used in the social sciences and beyond.
• MLA style is common in the humanities.
• Chicago notes and bibliography , common in the humanities
• Chicago author-date , used in the (social) sciences
• There are many other citation styles for different disciplines.

If in doubt, check with your instructor or read other papers from your field of study to see what style they follow.

In most styles, your citations consist of:

• Brief in-text citations at the relevant points in the text
• A reference list or bibliography containing full information on all the sources you’ve cited

In-text citations most commonly take the form of parenthetical citations featuring the last name of the source’s author and its year of publication (aka author-date citations).

An alternative to this type of in-text citation is the system used in numerical citation styles , where a number is inserted into the text, corresponding to an entry in a numbered reference list.

There are also note citation styles , where you place your citations in either footnotes or endnotes . Since they’re not embedded in the text itself, these citations can provide more detail and sometimes aren’t accompanied by a full reference list or bibliography.

A reference list (aka “Bibliography” or “Works Cited,” depending on the style) is where you provide full information on each of the sources you’ve cited in the text. It appears at the end of your paper, usually with a hanging indent applied to each entry.

The information included in reference entries is broadly similar, whatever citation style you’re using. For each source, you’ll typically include the:

• Author name
• Publication date
• Container (e.g., the book an essay was published in, the journal an article appeared in)
• Location (e.g., a URL or DOI , or sometimes a physical location)

The exact information included varies depending on the source type and the citation style. The order in which the information appears, and how you format it (e.g., capitalization, use of italics) also varies.

Most commonly, the entries in your reference list are alphabetized by author name. This allows the reader to easily find the relevant entry based on the author name in your in-text citation.

In numerical citation styles, the entries in your reference list are numbered, usually based on the order in which you cite them. The reader finds the right entry based on the number that appears in the text.

Because each style has many small differences regarding things like italicization, capitalization , and punctuation , it can be difficult to get every detail right. Using a citation generator can save you a lot of time and effort.

Scribbr offers citation generators for both APA and MLA style. Both are quick, easy to use, and 100% free, with no ads and no registration required.

Just input a URL or DOI or add the source details manually, and the generator will automatically produce an in-text citation and reference entry in the correct format. You can save your reference list as you go and download it when you’re done, and even add annotations for an annotated bibliography .

Once you’ve prepared your citations, you might still be unsure if they’re correct and if you’ve used them appropriately in your text. This is where Scribbr’s other citation tools and services may come in handy:

Plagiarism Checker

Citation Checker

Citation Editing

Plagiarism means passing off someone else’s words or ideas as your own. It’s a serious offense in academia. Universities use plagiarism checking software to scan your paper and identify any similarities to other texts.

When you’re dealing with a lot of sources, it’s easy to make mistakes that could constitute accidental plagiarism. For example, you might forget to add a citation after a quote, or paraphrase a source in a way that’s too close to the original text.

Using a plagiarism checker yourself before you submit your work can help you spot these mistakes before they get you in trouble. Based on the results, you can add any missing citations and rephrase your text where necessary.

Try out the Scribbr Plagiarism Checker for free, or check out our detailed comparison of the best plagiarism checkers available online.

Scribbr Plagiarism Checker

Scribbr’s Citation Checker is a unique AI-powered tool that automatically detects stylistic errors and inconsistencies in your in-text citations. It also suggests a correction for every mistake.

Currently available for APA Style, this is the fastest and easiest way to make sure you’ve formatted your citations correctly. You can try out the tool for free below.

If you need extra help with your reference list, we also offer a more in-depth Citation Editing Service.

Our experts cross-check your in-text citations and reference entries, make sure you’ve included the correct information for each source, and improve the formatting of your reference page.

If you want to handle your citations yourself, Scribbr’s free Knowledge Base provides clear, accurate guidance on every aspect of citation. You can see citation examples for a variety of common source types below:

And you can check out our comprehensive guides to the most popular citation styles:

At college level, you must properly cite your sources in all essays , research papers , and other academic texts (except exams and in-class exercises).

Add a citation whenever you quote , paraphrase , or summarize information or ideas from a source. You should also give full source details in a bibliography or reference list at the end of your text.

The exact format of your citations depends on which citation style you are instructed to use. The most common styles are APA , MLA , and Chicago .

The abbreviation “ et al. ” (Latin for “and others”) is used to shorten citations of sources with multiple authors.

“Et al.” is used in APA in-text citations of sources with 3+ authors, e.g. (Smith et al., 2019). It is not used in APA reference entries .

Use “et al.” for 3+ authors in MLA in-text citations and Works Cited entries.

Use “et al.” for 4+ authors in a Chicago in-text citation , and for 10+ authors in a Chicago bibliography entry.

The Scribbr Citation Generator is developed using the open-source Citation Style Language (CSL) project and Frank Bennett’s citeproc-js . It’s the same technology used by dozens of other popular citation tools, including Mendeley and Zotero.

You can find all the citation styles and locales used in the Scribbr Citation Generator in our publicly accessible repository on Github .

APA format is widely used by professionals, researchers, and students in the social and behavioral sciences, including fields like education, psychology, and business.

Be sure to check the guidelines of your university or the journal you want to be published in to double-check which style you should be using.

MLA Style  is the second most used citation style (after APA ). It is mainly used by students and researchers in humanities fields such as literature, languages, and philosophy.

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