APA citation style - 7th edition


One author

  • In most cases, providing the author's last name and the publication year are sufficient:
    Smith (1997) compared reaction times...

    Within a paragraph, you need not include the year in subsequent references.

    Smith (1997) compared reaction times. Smith also found that...

Two authors

  • If there are two authors, include the last name of each and the publication year:
    ... as James and Ryerson (1999) demonstrated...
    ... as has been shown (James & Ryerson, 1999)...

3 or more authors

  • If there are three or more authors, include the last name of only the first author followed by "et al.":
    Wottom et al. (2017) found that...
    ... was also noted (Wotton et al., 2017)...

Corporate authors

  • The names of groups that serve as authors (e.g., corporations, associations, government agencies, and study groups) are usually spelled out each time they appear in a text citation. If it will not cause confusion for the reader, names may be abbreviated thereafter:
    First citation: (National Institute of Mental Health [NIMH], 1999)
    Subsequent citations: (NIMH, 1999)
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