Παραπομπή APA

Hass, K. (1979). Abnormal psychology. D Van Nostrand Company.

Παραπομπή Chicago Style

Hass, Kurt. Abnormal Psychology. New York: D Van Nostrand Company, 1979.

Παραπομπή MLA

Hass, Kurt. Abnormal Psychology. D Van Nostrand Company, 1979.