Cita APA (7th ed.)

Weiten, W., & Halpern, D. F. (2004). Psychology: Themes and variations (6th ed.). Wadsworth Thomson Learning.

Cita Chicago (17th ed.)

Weiten, Wayne, i Diane F. Halpern. Psychology: Themes and Variations. 6th ed. Belmont, Calif: Wadsworth Thomson Learning, 2004.

Cita MLA (9th ed.)

Weiten, Wayne, i Diane F. Halpern. Psychology: Themes and Variations. 6th ed. Wadsworth Thomson Learning, 2004.