Dyfyniad APA

Halgin, R. P., & Whitbourne, S. K. (2007). Abnormal psychology: Clinical perspectives on psychological disorders (5th ed.). McGraw Hill.

Dyfyniad Arddull Chicago

Halgin, Richard P., and Susan Krauss Whitbourne. Abnormal Psychology: Clinical Perspectives on Psychological Disorders. 5th ed. New York: McGraw Hill, 2007.

Dyfyniad MLA

Halgin, Richard P., and Susan Krauss Whitbourne. Abnormal Psychology: Clinical Perspectives on Psychological Disorders. 5th ed. McGraw Hill, 2007.

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