Dyfyniad APA

World Health organization & United Nations Environment Programme. (1992). IPCS: Environmental Health Criteria 161: Phenol. World Health Organization.

Dyfyniad Arddull Chicago

World Health organization and United Nations Environment Programme. IPCS: Environmental Health Criteria 161: Phenol. Geneva: World Health Organization, 1992.

Dyfyniad MLA

World Health organization and United Nations Environment Programme. IPCS: Environmental Health Criteria 161: Phenol. World Health Organization, 1992.

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