Não informado. Annual report on child and youth welfare. United Nations, Department of Social Affairs.
Chicago (17e ed.) BronvermeldingNão informado. Annual Report on Child and Youth Welfare. Geneva, Suíça: United Nations, Department of Social Affairs.
MLA (8e ed.) BronvermeldingNão informado. Annual Report on Child and Youth Welfare. United Nations, Department of Social Affairs.
Let op: Deze citaties zijn niet altijd 100% accuraat.