Dyfyniad APA

World Health Organization & United nations Environment Programme. (1991). IPCS: Environmental health criteria 125 platinum. World Health Organization.

Dyfyniad Arddull Chicago

World Health Organization and United nations Environment Programme. IPCS: Environmental Health Criteria 125 Platinum. Geneva: World Health Organization, 1991.

Dyfyniad MLA

World Health Organization and United nations Environment Programme. IPCS: Environmental Health Criteria 125 Platinum. World Health Organization, 1991.

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