APA (7th ed.) Citation

Hergenhahn, B. R., & Olson, M. H. (2007). An introduction to theories of personality. Upper Saddle River, NJ : Pearson/Prentice Hall.

Chicago Style (17th ed.) Citation

Hergenhahn, B. R., and Matthew H. Olson. An Introduction to Theories of Personality. Upper Saddle River, NJ : Pearson/Prentice Hall, 2007.

MLA (9th ed.) Citation

Hergenhahn, B. R., and Matthew H. Olson. An Introduction to Theories of Personality. Upper Saddle River, NJ : Pearson/Prentice Hall, 2007.

Warning: These citations may not always be 100% accurate.