Gaya APA

Schultz, D, P., Schultz, S, E. (2005). Theories of Personality (8th Edition). United States of America: Wadsworth Cengage Learning.

Gaya MLA

Schultz, Duane, P.., Schultz, Sydney, Ellen. "Theories of Personality". 8th Edition United States of America: Wadsworth Cengage Learning, 2005. Text.