APA (7e ed.) Bronvermelding

Hergenhahn, B. R., & Olson, M. H. (1999). An introduction to theories of personality (5th ed.). Prentice Hall.

Chicago (17e ed.) Bronvermelding

Hergenhahn, B. R., en Matthew H. Olson. An Introduction to Theories of Personality. 5th ed. Upper Saddle River, N.J: Prentice Hall, 1999.

MLA (9e ed.) Bronvermelding

Hergenhahn, B. R., en Matthew H. Olson. An Introduction to Theories of Personality. 5th ed. Prentice Hall, 1999.