Não informado. (1965). Abstracts for social workers. National Association of Social Workers.
Chicago-referens (17:e uppl.)Não informado. Abstracts for Social Workers. New York: National Association of Social Workers, 1965.
MLA-referens (8:e uppl.)Não informado. Abstracts for Social Workers. National Association of Social Workers, 1965.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.