OMS. (1990). Bulletin of WHO: Vol.68(4)/1990. Geneva: OMS.
Trích dẫn kiểu ChicagoOMS. Bulletin of WHO: Vol.68(4)/1990. Geneva: OMS, 1990.
MLA CitationOMS. Bulletin of WHO: Vol.68(4)/1990. Geneva: OMS, 1990.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.