World Health Organization. (1971). Family planning in health services; report of a WHO expert committee. s.n.
Chicago-viite (17. p.)World Health Organization. Family Planning in Health Services; Report of a WHO Expert Committee. Geneva: s.n, 1971.
MLA-viite (9. p.)World Health Organization. Family Planning in Health Services; Report of a WHO Expert Committee. s.n, 1971.
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