APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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