APA-referens (7:e uppl.)

Hergenhahn, B. R., & Olson, M. H. (1999). An introduction to theories of personality (Fifth edition.). Prentice Hall, Inc.

Chicago-referens (17:e uppl.)

Hergenhahn, B. R., och Matthew H. Olson. An Introduction to Theories of Personality. Fifth edition. Upper Saddle River, New Jersey: Prentice Hall, Inc, 1999.

MLA-referens (9:e uppl.)

Hergenhahn, B. R., och Matthew H. Olson. An Introduction to Theories of Personality. Fifth edition. Prentice Hall, Inc, 1999.