World Health Organization. (1971). Family planning in health services; report of a WHO expert committee. s.n.
Chicago (17e ed.) BronvermeldingWorld Health Organization. Family Planning in Health Services; Report of a WHO Expert Committee. Geneva: s.n, 1971.
MLA (9e ed.) BronvermeldingWorld Health Organization. Family Planning in Health Services; Report of a WHO Expert Committee. s.n, 1971.
Let op: Deze citaties zijn niet altijd 100% accuraat.