Não informado. Social service quarterly. National Council of Social Service.
Chicago-Zitierstil (17. Ausg.)Não informado. Social Service Quarterly. London: National Council of Social Service.
MLA-Zitierstil (8. Ausg.)Não informado. Social Service Quarterly. National Council of Social Service.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.