Παραπομπή APA

Coville, W. J. C., & Costello, T. W. (1960). Abnormal psychology. Barnes & Noble books.

Παραπομπή Chicago Style

Coville, Walter J Costello, και Timothy W. Costello. Abnormal Psychology. New York: Barnes & Noble books, 1960.

Παραπομπή MLA

Coville, Walter J Costello, και Timothy W. Costello. Abnormal Psychology. Barnes & Noble books, 1960.