Dyfyniad APA

Hergenhahn, B. R., & Olson, M. H. (2007). An Introduction to theories of personality (7th ed.). Pearson Prentice Hall.

Dyfyniad Arddull Chicago

Hergenhahn, B. R., and Matthew H. Olson. An Introduction to Theories of Personality. 7th ed. Upper Saddle River, N.J: Pearson Prentice Hall, 2007.

Dyfyniad MLA

Hergenhahn, B. R., and Matthew H. Olson. An Introduction to Theories of Personality. 7th ed. Pearson Prentice Hall, 2007.

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