Dyfyniad APA

Vitkus, J. (1993). Casebook in abnormal psychology (2nd ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Vitkus, John. Casebook in Abnormal Psychology. 2nd ed. New York: McGraw-Hill, 1993.

Dyfyniad MLA

Vitkus, John. Casebook in Abnormal Psychology. 2nd ed. McGraw-Hill, 1993.

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