Vitkus, J. (1996). Casebook in abnormal psychology (3rd ed.). McGraw-Hill.
Cita Chicago (17th ed.)Vitkus, John. Casebook in Abnormal Psychology. 3rd ed. New York: McGraw-Hill, 1996.
Cita MLA (9th ed.)Vitkus, John. Casebook in Abnormal Psychology. 3rd ed. McGraw-Hill, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.