APA Citatie

Hjelle, L. A., & Ziegler, D. J. (1985). Personality theories: Basic assumptions, research and applications (2nd ed.). McGraw- Hill.

Chicago Style citaat

Hjelle, Larry A., en Daniel J. Ziegler. Personality Theories: Basic Assumptions, Research and Applications. 2nd ed. London: McGraw- Hill, 1985.

MLA citatie

Hjelle, Larry A., en Daniel J. Ziegler. Personality Theories: Basic Assumptions, Research and Applications. 2nd ed. McGraw- Hill, 1985.