OMS. (1989). Bulletin of WHO; supplement Vol.67(N2)/1989: Bulletin de l'OMS; supplement Vol.65(N2)/1989. Geneva: OMS.
Trích dẫn kiểu ChicagoOMS. Bulletin of WHO; Supplement Vol.67(N2)/1989: Bulletin De L'OMS; Supplement Vol.65(N2)/1989. Geneva: OMS, 1989.
MLA citiranjeOMS. Bulletin of WHO; Supplement Vol.67(N2)/1989: Bulletin De L'OMS; Supplement Vol.65(N2)/1989. Geneva: OMS, 1989.
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