Holmes, D. S. (1994). Abnormal psychology (Second edition.). Harper-Collins College.
Cita Chicago (17th ed.)Holmes, David S. Abnormal Psychology. Second edition. New York: Harper-Collins College, 1994.
Cita MLA (9th ed.)Holmes, David S. Abnormal Psychology. Second edition. Harper-Collins College, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.