apa citation 6th edition format uses author-date in-text cites and a matching reference list entry.
Some classes still require APA 6th, while most online search results show newer rules. That mismatch can waste time and cause tiny formatting slips that add up. The fix is to learn the 6th edition patterns once, then repeat them the same way for every source.
You’ll see the core rules, a quick table you can scan, and templates for common sources. You’ll also get a short self-check so you can catch errors before you turn the paper in.
| What You’re Doing | In-Text Pattern | Reference Entry Pattern |
|---|---|---|
| Paraphrase, one author | (Lopez, 2019) or Lopez (2019) | Lopez, R. J. (2019). Title in sentence case. |
| Direct quote | (Lopez, 2019, p. 44) or (pp. 44–45) | Same entry as the work; page stays in text |
| Two authors | (Lopez & Chen, 2018) every time | Lopez, R. J., & Chen, T. (2018). … |
| Three to five authors | First cite: all names; later: Lopez et al. | List all authors (up to seven) in the entry |
| Six+ authors | Lopez et al. from the first cite | First six, …, final author |
| Group author | (World Health Organization [WHO], 2015); later (WHO, 2015) | World Health Organization. (2015). … |
| No author | (“Short Title,” 2017) | Title moves to author spot; alphabetize by title |
| No date | (Smith, n.d.) | Smith, J. (n.d.). … |
| Same author, same year | (Kim, 2020a) and (Kim, 2020b) | Use 2020a/2020b in the list, too |
| Multiple sources together | (Adams, 2018; Chen, 2020) | Each source has its own entry |
APA Citation 6th Edition Format For In-Text Citations
In-text citations do one job: point the reader to a full reference entry. APA 6th uses the author–date system, so you usually include a last name and a year. When you quote, you add a page number or another locator.
Parenthetical And Narrative Styles
Both styles are fine. Choose the one that reads best in your sentence.
- Parenthetical: Put the citation at the end of the clause: (Nguyen, 2021).
- Narrative: Name the author in the sentence, then add the year: Nguyen (2021) reported…
For two authors, use an ampersand inside parentheses and “and” in the sentence: (Nguyen & Patel, 2021) or Nguyen and Patel (2021).
If you want a refresher from a writing lab, Purdue OWL’s APA 6th page on in-text citations: the basics is easy to scan.
Author Count Rules That Change After The First Mention
APA 6th is strict about how many names you show, and it changes based on author count.
One Author
Use last name and year: (Lopez, 2019). If you cite the same source again, keep the year unless your class rules say you can omit it within a paragraph.
Two Authors
List both last names every time. Don’t switch to “et al.” for two authors.
Three To Five Authors
First citation lists every author: (Lopez, Chen, & Singh, 2018). Later citations shorten to the first author plus “et al.”: (Lopez et al., 2018). Use a period after “al.”
Six Or More Authors
Use first author plus “et al.” from the first mention: (Lopez et al., 2018). You never list all six names in the text.
Quotes, Pages, And Other Locators
For direct quotes, include a locator right in the citation. Use “p.” for one page and “pp.” for a range: (Lopez, 2019, p. 44) or (Lopez, 2019, pp. 44–45).
No page numbers? If the source shows paragraph numbers, use them: (Lopez, 2019, para. 7). If it has headings, name the heading and count paragraphs under it. Keep the locator short so it doesn’t take over the sentence.
Group Authors, No Author, And No Date
For an organization author, write the full name the first time. If you want an abbreviation, add it in brackets: (American Psychological Association [APA], 2010). Later you can use the abbreviation: (APA, 2010).
No named author means you cite the title. Use quotation marks for webpages and articles: (“Study Skills Checklist,” 2017). No date uses “n.d.”: (Smith, n.d.).
Secondary Sources And Personal Communications
If you read about one author inside another author’s work, cite it as a secondary source only when you can’t get the original. In text, it looks like: Garcia (as cited in Lopez, 2019). In the reference list, you list only Lopez (2019).
Emails, interviews, and class lectures are personal communications. Cite them in text only, since a reader can’t retrieve them: (J. Kim, personal communication, March 3, 2024).
Reference List Rules In APA 6th
The reference list is the second half of the author–date system. Every in-text citation must match one entry, and every entry must show up in the text. When that pairing breaks, your reader has to guess what you meant.
Formatting Basics
Start references on a new page. Use double spacing and a hanging indent. Entries are alphabetized by the first author’s last name. If there’s no author, alphabetize by the first word of the title, skipping A, An, and The.
Ordering Multiple Works By The Same Author
If you cite two works by the same author, list them by year, oldest first. When the author and year match, add letters to the year and keep those letters everywhere: (Kim, 2020a) must point to Kim (2020a) in the reference list.
Decide “a” and “b” by the titles, sorted alphabetically after you ignore A, An, and The. If two different authors share the same last name, add initials in the in-text citation so the reader knows who is who: (A. Smith, 2016) and (J. Smith, 2016). For group authors with long names, you can introduce an abbreviation on first use, then use the short form in later citations, as long as the reference entry keeps the full name. If the author is also the publisher, write Author in the publisher spot.
Authors, Dates, And Punctuation
Write authors as last name, then initials: Lopez, R. J. Put commas between authors and an ampersand before the final author: Lopez, R. J., Chen, T., & Singh, P.
Put the year in parentheses right after the author list: (2019). End that part with a period. If there’s no date, use (n.d.). If the work is in press, use (in press).
Titles, Italics, And Case
Most titles in APA 6th are sentence case. Capitalize the first word, the first word after a colon, and proper nouns. Journal titles stay in title case and are italicized, along with the volume number. Article titles are sentence case and not italicized.
DOIs, URLs, And Retrieval Lines
In APA 6th, DOIs use the “doi:” label, not a clickable link. If a DOI exists, use it and skip “Retrieved from.” If no DOI exists, your class may want a URL, so use the cleanest stable link you can find.
Retrieved dates are used only when the content is likely to change, such as a wiki page. When you need one, the line reads: Retrieved Month Day, Year, from URL.
A Simple Way To Build Citations From Scratch
When you’re tired, citation work can turn into copy-and-paste chaos. A short routine keeps you steady.
- Capture the source facts: author or group name, year, title, and where it appears.
- Choose the source type: journal article, book, chapter, webpage, report, video.
- Write the reference entry first: it gives you the exact author spelling and year.
- Add the in-text citation: author + year, then a locator only for quotes.
- Do a match check: scan for citations that lack an entry, and entries that never appear in text.
If you use a generator, treat it like a draft. It can miss author rules, DOI formatting, or capitalization. Your final pass is what makes the list look clean.
Common Source Templates You Can Copy
These templates cover the sources most students use. Replace the placeholders and keep punctuation where it sits. If your paper requires apa citation 6th edition format, this section is where you’ll spend most of your time.
| Source Type | Reference Entry Pattern | In-Text Pattern |
|---|---|---|
| Journal article with DOI | Author, A. A. (Year). Article title. Journal Title, 12(3), 45–67. doi:10.xxxx/xxxx | (Author, Year) |
| Journal article, no DOI | Author, A. A. (Year). Article title. Journal Title, 12(3), 45–67. Retrieved from URL | (Author, Year) |
| Book (print) | Author, A. A. (Year). Book title (2nd ed.). City, ST: Publisher. | (Author, Year) |
| Chapter in edited book | Author, A. A. (Year). Chapter title. In E. E. Editor (Ed.), Book title (pp. xx–xx). City, ST: Publisher. | (Author, Year) |
| Webpage | Group Author. (Year, Month Day). Page title. Retrieved from URL | (Group, Year) |
| Government report | Agency Name. (Year). Report title (Report No. xxx). Retrieved from URL | (Agency, Year) |
| Online video | Author, A. A. [Screen name]. (Year, Month Day). Video title [Video file]. Retrieved from URL | (Author, Year) |
| Class lecture or interview | Not listed (personal communication) | (A. A. LastName, personal communication, Month Day, Year) |
One Paragraph Example
Here’s a clean pattern. Lopez (2019) linked short review sessions with better recall, and later sleep helped students remember material (Chen et al., 2018). A direct quote adds a locator: (Lopez, 2019, p. 44). Your reader can check the references page and find both entries without a scavenger hunt.
Mistakes Teachers Circle Again And Again
Most errors repeat, so you can fix them fast once you know what to watch for.
- Name mismatch: your text says “De la Cruz,” but your reference list says “Cruz.” Keep spacing and capitalization identical.
- Et al. too soon: you shorten a three-to-five-author source on the first mention. In APA 6th, first mention lists all names.
- Year missing in narrative cites: the author appears in the sentence, but the year never shows up.
- Title case in reference titles: article and book titles should be sentence case.
- Italics mix-up: journal title and volume are italicized; article title is not.
- Messy URLs: remove tracking strings and keep the stable link.
Fast Self-Check Before You Submit
Run this once, then you can stop second-guessing every comma.
- Every in-text citation has one matching reference entry with the same author spelling.
- Every reference entry appears at least once in the text.
- Two-author citations use “&” in parentheses and “and” in the sentence.
- Three-to-five-author citations switch to “et al.” after the first mention.
- Direct quotes include a page or paragraph locator.
- Reference titles are sentence case; journal titles and volume numbers are italicized.
- DOIs use the “doi:” label in APA 6th.
Finish by reading one paragraph out loud. If a citation feels clunky, shift it to the end of the clause or swap narrative for parenthetical style. Small edits like that keep your writing smooth while still meeting the rules.