Não informado. Annual report on child and youth welfare. United Nations, Department of Social Affairs.
Chicago-Zitierstil (17. Ausg.)Não informado. Annual Report on Child and Youth Welfare. Geneva, Suíça: United Nations, Department of Social Affairs.
MLA-Zitierstil (8. Ausg.)Não informado. Annual Report on Child and Youth Welfare. United Nations, Department of Social Affairs.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.