Cita APA (7th ed.)

Nietzel, M. T., & Bernstein, D. A. (1998). Abnormal psychology. Allyn and Bacon.

Cita Chicago (17th ed.)

Nietzel, Michael T., i Douglas A. Bernstein. Abnormal Psychology. Boston: Allyn and Bacon, 1998.

Cita MLA (9th ed.)

Nietzel, Michael T., i Douglas A. Bernstein. Abnormal Psychology. Allyn and Bacon, 1998.