Harvard vs APA: Cite Them Right 13 vs APA 7, and When to Use Each

Harvard vs APA: Quick Answer

Use APA when your course, journal, or thesis handbook names APA Style — the usual default in psychology, education, nursing, and many North American social sciences. Use Harvard when the handbook names Harvard, Cite Them Right, or an institutional Harvard PDF — the usual default in UK and Australian universities across business, social science, and many science courses. If the assignment sheet names a style, that instruction wins over any field convention.

Harvard Referencing Is Not One Official Style

The most important Harvard vs APA fact is not punctuation. It is that APA is a single standard and Harvard is not. APA 7th edition is published by the American Psychological Association. Harvard referencing has no equivalent university press and no single current edition number that every department shares.

Harvard University does not teach or maintain "Harvard style." Harvard Library's own FAQ, opened for this rewrite on 15 September 2026, still says the name is a misnomer, and the library's own illustration uses a no-comma parenthesis — the form Cite Them Right does not use:

That (Robbins 1987) example is the proof students need. Even the campus the style is named after describes author–date without the Cite Them Right comma. A webpage that says "Harvard never uses a comma" and a webpage that says "Harvard always uses a comma" can both be quoting a real sheet. Neither sheet is the Harvard manual.

The scholarly history is Eli Chernin's 1988 note in the BMJ, "The 'Harvard system': a mystery dispelled" (297(6655), 1062–1063; Crossref lists Eli Chernin as the sole author). Chernin traces the first parenthetical author–year citation to Edward Laurens Mark's 1881 paper on the slug Limax campestris in the Bulletin of the Museum of Comparative Zoology — the work Chernin cites as Mark, E. L. (1881), "Maturation, fecundation, and segmentation of Limax campestris, Binney," volume 6, part 2, no. 12, pages 173–625. A later English visitor to Harvard's library, Chernin reports, took the habit home and the label stuck, especially in Britain and the Commonwealth. The name describes a method, not a campus brand. Harvard Library's FAQ still shortens the byline to "Chernin, C."; the BMJ running head and Crossref identify Eli Chernin.

So when a UK handbook says "Harvard," it almost always means a local author–date house style, or the commercially published Cite Them Right Harvard chapter. When a US handbook says "APA," it means the 7th edition of the Publication Manual. Treating those two assignments as the same format is the usual source of mixed commas, stray ampersands, and the wrong et al. cutoff.

Current Editions: APA 7 vs Cite Them Right 13

A Harvard vs APA chart is only useful if it names editions. APA 7th edition (2020) is still the current APA manual in 2026; in-text rules sit in §§8.10–8.36. The Association also publishes the Concise Guide to APA Style, 7th edition, for student papers. The current official journal sample on the APA Style Common Reference Examples Guide (last updated 3 March 2026) is Niepel, Hausen, Weber, and Möller (2025). The Harvard comparison in this guide follows Cite Them Right: The Essential Referencing Guide, 13th edition, by Richard Pears and Graham Shields (Bloomsbury Academic, 1 May 2025; paperback ISBN 9781350477261). That is the edition UK libraries updated to in summer 2025.

Three 2025 Cite Them Right changes still matter if you are copying an older Harvard sheet. The University of Dundee page, opened on 15 September 2026, still lists them from the summer 2025 update:

• No place of publication for print books. CTR 13 drops the city. APA 7 had already dropped publisher location. If your printed handout still shows Cambridge: Cambridge University Press or London: Bloomsbury, it is following CTR 12 or an older institutional sheet.
• Journal articles with an article number now use the word article rather than article number.
• New AI guidance. CTR 13 added examples for generated text, images, music, video, and code, plus registered designs. Bloomsbury's 13th-edition note also covers working with AI tools without treating the output as a substitute for a cited source. APA Style published its own ChatGPT format. See how to cite ChatGPT and AI tools rather than inventing a hybrid.

Do not copy Westminster's live book line as the official CTR 13 reference. On 15 September 2026 the University of Westminster Harvard page printed Pears, R. and Shields, G. (2025) Cite them right: the essential guide to referencing, 13th ed. Macmillan. The book's own title is Cite Them Right: The Essential Referencing Guide; the imprint is Bloomsbury Academic, not Macmillan; and Cite Them Right Harvard writes 13th edn, not 13th ed. Use the Bloomsbury line below. Westminster's rule sentences about Harvard-as-a-generic-term and the dropped city are still the ones to quote.

How the Official Guides Describe Author–Date

APA states the shared method in one sentence. Harvard, having no single manual, is best introduced by the teaching edition UK libraries actually assign:

The APA sentences are from the basic principles of citation, author–date citation system, and elements of reference list entries pages. Together with Westminster and Dundee, they explain the choice: one official author–date system versus a named Harvard variant you have to identify first.

What Is the Difference Between Harvard and APA?

Both styles answer the same reader question — who wrote this, and when? — which is why they feel similar in the sentence. The differences sit in the mechanics: how many names appear before et al., whether the parenthesis uses and or &, how an article title is marked, whether a web page needs an access date, and whether the year is followed by a full stop in the reference list. Those details are small enough to miss and consistent enough for a marker to notice on every line.

In-Text Citations Compared

In Cite Them Right Harvard and in APA 7, the basic parenthesis includes a comma: (Author, Year). That surprises people who learned a no-comma Harvard sheet, or who met Chicago author–date, which writes (Hunt 2004) with no comma. If your department's PDF omits the comma, follow the PDF. If it says Cite Them Right and nothing else, use the comma.

The sentence can be identical. The tell is the two-author connector and the three-author rule, not the comma. APA also lets you drop the year after the first narrative mention in the same paragraph when the source cannot be confused with another work by the same author (see the APA author–date page). Harvard guides usually keep the year visible each time. Westminster's live three-author specimen is still (Pears, Smith and Shields, 2022) — three surnames, no et al.

The et al. cutoff is the difference markers catch

APA 7 uses the first author's surname plus et al. for every citation to a work with three or more authors, including the first mention. Cite Them Right Harvard names one, two, or three authors in the parenthesis and switches to et al. only at four. Westminster's CTR sheet applies et al. in both the citation and the reference list unless a lecturer asks for every name in the list. That is why a three-author psychology classic looks different in the two styles even when the comma matches.

Crossref lists that article as Bandura, A., Ross, D., and Ross, S. A. (1961), "Transmission of aggression through imitation of aggressive models," The Journal of Abnormal and Social Psychology, 63(3), 575–582, https://doi.org/10.1037/h0045925. Do not attach DOI 10.1037/h0048687 — that identifier belongs to their later 1963 paper, "Imitation of film-mediated aggressive models," volume 66, pages 3–11. Page 575 is the 1961 article's first page. For more author-count patterns, see citing multiple authors.

Four or five authors is the case where the two styles agree in the sentence and still disagree in the list: APA keeps every name and an ampersand; Cite Them Right Harvard may shorten the list to First Author et al. if the department follows Westminster's default. Name every author in the list when your PDF asks for that. Do not invent a fourth author on Bandura (1961) just to force an et al. example.

Reference List vs Reference List

APA titles the end list References and includes only works cited in the text. Cite Them Right distinguishes a reference list (works you cited) from a bibliography (cited works plus background reading). Westminster tells students to head the page references or list of references, not bibliography, and to include only sources that have an in-text citation. Mixing the two headings — or padding an APA list with unread sources — is a style error, not extra diligence. See reference list vs bibliography.

The Same Book in APA and Harvard

The examples below use Lynn Hunt's Politics, Culture, and Class in the French Revolution in the University of California Press twentieth-anniversary edition (May 2004; first published 1984; paperback ISBN 9780520241565). Both current editions omit the city. The visible differences are the full stop after the APA year, the space after APA initials, and the edition statement. Walk through more book patterns in how to cite a book in APA, reprints and translations, or the worked pages for a book in APA and a book in Harvard.

If you need a book that is the Harvard handbook, cite the 13th edition from the publisher page, not from a LibGuide that has drifted. Bloomsbury Academic published it on 1 May 2025:

The Same Journal Article in APA and Harvard

Journal articles show the rest of the contrast: and versus &, single quotes versus none, pp. versus a bare page range, and how each style writes the DOI. APA 7 prefers the DOI as a https://doi.org/ URL and puts no full stop after it. Cite Them Right commonly introduces the same URL with Available at: and, on Westminster's sheet, omits an accessed date after a DOI. Westminster's School of Life Sciences still tells students to cite journal articles as if they were using the print version — no Available at line — even when they read the PDF. See citing a journal article in APA, how to use DOIs, and the worked pages for a journal article in APA and a journal article in Harvard.

The article is real: Ed Diener and Martin E. P. Seligman, "Very Happy People," Psychological Science 13, no. 1 (2002): 81–84, https://doi.org/10.1111/1467-9280.00415. Crossref lists the print issue as January 2002. Cite a page only when you are quoting or pointing to a specific passage.

Westminster's own two-author journal specimen is Joseph M. LaRochelle and Allison R. King, "Avoiding Plagiarism," Hospital Pharmacy 46, no. 12 (December 2011): 917–919, https://doi.org/10.1310/hpj4612-917. Their live line keeps a space inside 46 (12) and still uses Available at: before the DOI:

The origin paper for the Harvard name

If you need a source that is about Harvard referencing itself, cite Chernin rather than a blog summary. Harvard Library's FAQ shortens the byline to "Chernin, C."; Crossref and the BMJ running head identify Eli Chernin:

Websites, Access Dates, and Pages With No Date

APA 7 treats a recoverable webpage as author, date, sentence-case italic title, site name when it differs from the author, and URL. A retrieval date is unusual. The official rule is narrow: include one only if the work is unarchived and designed to change over time (APA Publication Manual, 7th ed., Section 9.16). Cite Them Right Harvard typically adds Available at: and (Accessed: Day Month Year) for web pages even when a publication year exists, because the convention treats the web as unstable. Westminster's FAQ: do not add an accessed date after a DOI. See citing a website in APA, citing a source with no date, and the worked pages for a website in APA and a website in Harvard.

• APA and a missing date: write (n.d.) in the citation and the reference. Do not invent a footer copyright year.
• Harvard and a missing date: write (no date) in full, in both the citation and the reference. Cite Them Right does not use the n.d. abbreviation. Westminster's example is still Smith (no date).
• APA access dates: skip them for a stable journal article, ebook, or archived page. Use Retrieved Month Day, Year, from URL only for live, unarchived sources such as a changing dashboard.
• Harvard access dates: expect them on web pages. A journal DOI is enough on its own in CTR; follow the departmental sheet if it still wants an accessed date after every URL.

Corporate Authors and Acronyms

UK Harvard sheets spend more time on NHS, NICE, and BBC than APA student papers usually do. Dundee's current CTR page gives two legal options for an organisation known by its initials. The first spells the name out on first mention and then shortens it; the reference list keeps the full name plus the initials in square brackets. The specimen is NICE guideline NG137, Twin and triplet pregnancy, last reviewed on the NICE page on 9 April 2024 — the year Dundee cites as 2024:

Dundee's second option lets a well-known initialism stand alone (NHS, 2024) if the course already treats the letters as the author. APA can do the same once the group name is written out. Do not invent an abbreviation that the source does not use. For more group-author patterns, see citing a group author and citing a government report in APA.

Quotations: 40 Words Versus Three Lines

The two styles also disagree on when a quotation leaves the sentence. APA 7 §8.27 blocks a quotation of 40 words or more: indent 0.5 in, drop the quotation marks, and put the citation after the final period. Westminster's CTR FAQ, opened on 15 September 2026, still uses a line count and single quotation marks:

Those two Diener sentences are templates for punctuation, not invented quotations from the article. If you quote the paper, use the authors' actual words and a page. For the full block-quote comparison across APA, MLA, and Chicago, see how to format block quotes.

Secondary Citations

Both styles want you to read the original. When you cannot, you cite the source you actually have and mention the original in the sentence. APA's formula is as cited in. Cite Them Right uses cited in for a summary and quoted in for a quotation, matching Westminster's secondary-referencing FAQ. Only the source you read goes in the reference list.

When to Use APA vs Harvard

Use APA when

• The syllabus, journal, or graduate school names APA, APA 7, or the Publication Manual.
• You are writing psychology, education, nursing, social work, or another North American social or behavioral science paper. See when to use APA.
• You need one rulebook that covers student title pages, headings, tables, and bias-free language, not only the reference list.
• You are submitting to a US or international journal that lists APA in its author guidelines.
• You want a style a reference manager can apply without first choosing among twenty institutional Harvard CSL files.

Use Harvard when

• The handbook names Harvard, Cite Them Right, or a university Harvard PDF (Westminster, Dundee, Anglia Ruskin, Imperial, Leeds, and many others).
• You are on a UK, Irish, Australian, or New Zealand course that has not specified APA, Chicago, or Vancouver.
• A British or Australian journal's author guidelines say Harvard or author–date and then point to their own examples.
• Your faculty uses Harvard for essays and a numbered style (Vancouver, IEEE) only for a subset of modules — do not guess; read that module's brief.
• You have already been given a local example sheet. The local sheet beats a generic Harvard webpage, including this one.

Common Harvard Variants (So You Stop Mixing Them)

Cite Them Right Harvard

Cite Them Right: The Essential Referencing Guide is the teaching book most UK libraries mean when they say Harvard without further qualification. The 13th edition (Bloomsbury Academic, 1 May 2025) covers Harvard in detail and then adds shorter chapters on APA, Chicago, IEEE, MLA, OSCOLA, MHRA, and Vancouver. It is not "the official Harvard manual" — there is no such book — but it is the closest thing to a shared UK classroom standard. Cite Them Right Online is the database edition of the same guide.

University house styles

Westminster, Dundee, Anglia Ruskin, Imperial College, the University of Leeds, and dozens of other institutions publish their own Harvard pages. They share the author–date idea and then disagree about et al., the comma, vol. and no., and whether the journal volume is italic. Westminster's Life Sciences exception — cite the journal as print even when you used the PDF — is a local rule, not a CTR 13 change. If your cover sheet names the university style, do not "correct" it toward CTR or APA.

Australian Harvard and the Style Manual

Many Australian universities still teach a Harvard variant descended from the old Australian Government Publishing Service (Style Manual, 6th ed., Snooks & Co., 2002). That family often keeps a place of publication and its own punctuation. The current Australian Government Style Manual is a separate house style for government writers, not a drop-in replacement for every Australian Harvard PDF. Use the guide your unit outlines.

ISO 690 author–date

ISO 690:2021 is an international standard for bibliographic references and citations. It includes an author–date method that some UK and European departments mention alongside Harvard. It is a standard, not a student handbook: if your course names ISO 690, follow that text rather than CTR.

Harvard vs APA vs MLA, Chicago, and Vancouver

Harvard vs APA is a choice inside the author–date family. If the real decision is social science versus literature, start with APA vs MLA. If one option uses footnotes, use APA vs Chicago. Medical and engineering courses that want numbered citations need Vancouver vs APA or IEEE vs APA, not a Harvard tweak. For the first-week question, use which citation style should I use? and citation styles by discipline.

Common Harvard vs APA Mistakes

• Assuming Harvard has no comma. Cite Them Right writes (Hunt, 2004), the same comma as APA 7. The no-comma form is Chicago author–date, Harvard Library's own illustration, or a local Harvard sheet. Check which one you were assigned.
• Using & in a Harvard parenthesis. APA parenthetical citations use Diener & Seligman. Cite Them Right uses Diener and Seligman in the parenthesis and in the reference list.
• *Applying APA's three-author et al. to Harvard.* Bandura, Ross and Ross stay named in CTR Harvard. APA shortens them on sight.
• Putting a city in a current CTR or APA book reference. CTR 13 and APA 7 both omit the place of publication. London: is an older-template leftover.
• Copying Westminster's Macmillan book line. The 13th edition is Bloomsbury Academic, The Essential Referencing Guide, ISBN 9781350477261. The LibGuide's swapped subtitle and Macmillan imprint are not the book.
• Writing Harvard article titles without quotes, or APA titles with quotes. Single quotes are a Harvard tell. APA article titles are bare sentence case.
• Using (n.d.) in Harvard or (no date) in APA. The abbreviations are not interchangeable.
• Adding an APA retrieval date to every URL. Most APA web references do not need one. Harvard web pages usually do need an accessed date. A DOI needs neither in CTR.
• Citing Harvard University as the author of Harvard style. The university does not publish this system. Cite your departmental guide, Cite Them Right, or Chernin (1988) for the history.
• Attaching the 1963 Bandura DOI to the 1961 Bobo-doll paper. 10.1037/h0045925 is "Transmission of aggression…" (1961). 10.1037/h0048687 is "Imitation of film-mediated aggressive models" (1963).
• Mixing the two styles in one paper. Pick the assigned style and restyle every parenthesis and every end-list line. Do not leave APA ampersands in a Harvard essay.
• Trusting a generator's label. Software named "Harvard" may emit CTR 10, an Elsevier Harvard file, or a no-comma variant. Compare three references to your PDF before you submit. The APA citation checker and Harvard citation checker catch some of those mismatches.

Official Sources and Further Reading

When a classroom handout and a random Harvard webpage disagree, the named edition wins. These are the primary sources opened or rechecked for this rewrite:

• APA Style: Author–date citation system — official explanation of APA in-text citations, including &, et al., and narrative citations (§§8.10–8.36).
• APA Style: Basic principles of citation — the correspondence rule between the text and the reference list.
• APA Style: Elements of reference list entries — author punctuation, retrieval dates, and DOI presentation.
• APA Style Common Reference Examples Guide (3 March 2026) — current Niepel et al. (2025) journal sample.
• American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.). https://doi.org/10.1037/0000165-000.
• University of Westminster: Harvard Style — a current, freely readable CTR 13 teaching sheet (author-count, DOI, secondary citation, three-line quotation). Rechecked 15 September 2026.
• University of Dundee: Harvard Cite Them Right — the summer 2025 CTR 13 change list and the NICE NG137 acronym specimen. Rechecked 15 September 2026.
• NICE NG137: Twin and triplet pregnancy — last reviewed 9 April 2024.
• Pears, R., & Shields, G. (2025). Cite them right: The essential referencing guide (13th ed.). Bloomsbury Academic (1 May 2025; ISBN 9781350477261). See also Cite Them Right Online.
• Harvard Library: What is the Harvard system for citing references? — the university's statement that it does not own the style. Rechecked 15 September 2026.
• Chernin, E. (1988). The "Harvard system": A mystery dispelled. BMJ, 297(6655), 1062–1063. https://doi.org/10.1136/bmj.297.6655.1062.
• Australian Government Style Manual — government house style, not a substitute for every Australian Harvard PDF.
• ISO 690:2021 — international standard for references and citations, including an author–date method.

Related guides and tools

• Harvard referencing guide
• Which citation style should I use?
• When to use APA style
• Citation styles by discipline
• APA vs MLA
• APA vs Chicago
• Vancouver vs APA
• IEEE vs APA
• ASA vs APA
• How to cite a book in APA
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• Citing multiple authors
• Citing a source with no date
• Citing a group author
• How to cite a government report in APA
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• How to use DOIs
• How to cite ChatGPT and AI tools
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• How to format block quotes
• Author–date system (glossary)
• DOI (glossary)
• APA vs Harvard comparison page
• How to cite a book in APA (examples)
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• How to cite a journal article in Harvard (examples)
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• APA 7 cheat sheet
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