Dyfyniad APA

Hjelle, L. A., & Daniel, J. Z. (1981). Personality theories: Basic assumptions, research and application/2e (2nd ed.). McGraw Hill.

Dyfyniad Arddull Chicago

Hjelle, Larry A., and J. Ziegler Daniel. Personality Theories: Basic Assumptions, Research and Application/2e. 2nd ed. London: McGraw Hill, 1981.

Dyfyniad MLA

Hjelle, Larry A., and J. Ziegler Daniel. Personality Theories: Basic Assumptions, Research and Application/2e. 2nd ed. McGraw Hill, 1981.

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