Excerpt from a secondary source example (APA Manual, p. 245)

Hayden, S. C., & Hojjat, M. (2006). Aggressive responses to betrayal: Type of relationship, victim’s sex, and nature of aggression.

Journal of Social and Personal Relationships, 23, 101-116. Excerpt obtained from Understanding Research

Methods (6th ed.), p. 177, by M. L. Patten, 2007, Glendale, CA: Pyrczak.