Não informado. (1970). Social work today. British Association of Social Workers.
Chicago-Zitierstil (17. Ausg.)Não informado. Social Work Today. London: British Association of Social Workers, 1970.
MLA-Zitierstil (8. Ausg.)Não informado. Social Work Today. British Association of Social Workers, 1970.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.