Παραπομπή APA

Costello, C. G. (1970). Symptoms of psychopathology: A handbook. Wiley.

Παραπομπή Chicago Style

Costello, Charles G. Symptoms of Psychopathology: A Handbook. New York: Wiley, 1970.

Παραπομπή MLA

Costello, Charles G. Symptoms of Psychopathology: A Handbook. Wiley, 1970.