Cita APA (7a ed.)

Schultz, D. P., & Schultz, S. E. (2009). Theories of personality (9th ed.). Thomson/Wadsworth.

Cita Chicago Style (17a ed.)

Schultz, Duane P., y Sydney Ellen Schultz. Theories of Personality. 9th ed. Australia: Thomson/Wadsworth, 2009.

Cita MLA (9a ed.)

Schultz, Duane P., y Sydney Ellen Schultz. Theories of Personality. 9th ed. Thomson/Wadsworth, 2009.