Dyfyniad APA

OMS. (1987). Bulletin of WHO; supplement Vol.65(N2)/1987: Bulletin de l'OMS; supplement Vol.65(N2)/1987. Geneva: OMS.

Dyfyniad Arddull Chicago

OMS. Bulletin of WHO; Supplement Vol.65(N2)/1987: Bulletin De L'OMS; Supplement Vol.65(N2)/1987. Geneva: OMS, 1987.

Dyfyniad MLA

OMS. Bulletin of WHO; Supplement Vol.65(N2)/1987: Bulletin De L'OMS; Supplement Vol.65(N2)/1987. Geneva: OMS, 1987.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.