Basic Citation Styles (Table 6.1) from American Psychological Association. (2010). Publication Manual of the American Psychological Association (p. 177). Washington, D.C.: Author.
hen citing more than one article published by an author in the same year, repeat the year but add a suffix to represent each article (Wilbourn, 1988a, 1988b). Suffixes are assigned according to the alphabetical order of the first major word in each title and also appear in the reference list, where the author's name is repeated for each article.
When a work’s author is designated as “Anonymous,” cite in text the word Anonymous followed by a comma and the date:
In the reference list, an anonymous work is alphabetized by the word Anonymous
Anonymous. (2010). Food safety shake-up needed in the USA. The Lancet, 375(9732), 2122. Retrieved from http://www.thelancet.com
Alphabetize multiple references within parentheses and separate author groups with a semicolon. You may separate a major reference from others by inserting "see also" before remaining references, which appear alphabetically:
(Patel, 1990; see also Arndt, 1986; Turgel, 1992).
When selecting one or more authors to represent the work or findings of a large group of authors, inform the reader by including "e.g." within the citation:
A large number of studies have shown that variations in brain waves are common (e.g., Engle, 1993a; Reuter, 1990, Trautman, 1987).