Dyfyniad APA

OMS. (1992). Bulletin of WHO; supplement Vol.70(N4)/1992: Bulletin de l'OMS; supplement Vol.70(N4)/1992. Geneva: OMS.

Dyfyniad Arddull Chicago

OMS. Bulletin of WHO; Supplement Vol.70(N4)/1992: Bulletin De L'OMS; Supplement Vol.70(N4)/1992. Geneva: OMS, 1992.

Dyfyniad MLA

OMS. Bulletin of WHO; Supplement Vol.70(N4)/1992: Bulletin De L'OMS; Supplement Vol.70(N4)/1992. Geneva: OMS, 1992.

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