Não informado. (1970). Journal of Behavior Therapy and Experimental Psychiatry. Pergamon Press.
Chicago-referens (17:e uppl.)Não informado. Journal of Behavior Therapy and Experimental Psychiatry. Elmsford, NY: Pergamon Press, 1970.
MLA-referens (8:e uppl.)Não informado. Journal of Behavior Therapy and Experimental Psychiatry. Pergamon Press, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.