Cita APA (7th ed.)

(2005). Concise Rules of APA Style. American Psychological Association.

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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

Atenció: Aquestes cites poden no estar 100% correctes.