Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.