APA-viite (7. p.)

Schultz, D. P., & Schultz, S. E. (2009). Theories of personality (Ninth edition.). Wadsworth/Cengage Learning.

Chicago-viite (17. p.)

Schultz, Duane P., ja Sydney Ellen Schultz. Theories of Personality. Ninth edition. Belmont, CA: Wadsworth/Cengage Learning, 2009.

MLA-viite (9. p.)

Schultz, Duane P., ja Sydney Ellen Schultz. Theories of Personality. Ninth edition. Wadsworth/Cengage Learning, 2009.