Dyfyniad APA
Halgin, R. P., & Whitbourne, S. K. (2003). Abnormal psychology: Clinical perspectives on psychological disorders (4th ed.). McGraw-Hill.
Dyfyniad Arddull Chicago
Halgin, Richard P., and Susan Krauss Whitbourne. Abnormal Psychology: Clinical Perspectives on Psychological Disorders. 4th ed. Boston: McGraw-Hill, 2003.
Dyfyniad MLA
Halgin, Richard P., and Susan Krauss Whitbourne. Abnormal Psychology: Clinical Perspectives on Psychological Disorders. 4th ed. McGraw-Hill, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.