APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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