Não informado. (1976). Health and Social Work. National Association of Social Workers.
Chicago-referens (17:e uppl.)Não informado. Health and Social Work. Washington: National Association of Social Workers, 1976.
MLA-referens (8:e uppl.)Não informado. Health and Social Work. National Association of Social Workers, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.