Cita APA (7a ed.)

American Psychological Association. (2005). Concise rules of APA style. American Psychological Association.

Cita Chicago Style (17a ed.)

American Psychological Association. Concise Rules of APA Style. Washington, DC: American Psychological Association, 2005.

Cita MLA (9a ed.)

American Psychological Association. Concise Rules of APA Style. American Psychological Association, 2005.