Παραπομπή APA

Wassell, B. B. (1959). Group psychoanalysis. Philosophical Library.

Παραπομπή Chicago Style

Wassell, B. Bohdan. Group Psychoanalysis. New York: Philosophical Library, 1959.

Παραπομπή MLA

Wassell, B. Bohdan. Group Psychoanalysis. Philosophical Library, 1959.