Dyfyniad APA

World Health Organization, Geneva, United Nations Environment Programme, & International Labour Organization. (1991). Environmental health criteria 120: hexachlorocyclopentadiene: IPCS International Programme on Chemical Safety. World Health Organization.

Dyfyniad Arddull Chicago

World Health Organization, Geneva, United Nations Environment Programme, and International Labour Organization. Environmental Health Criteria 120: Hexachlorocyclopentadiene: IPCS International Programme on Chemical Safety. Geneva: World Health Organization, 1991.

Dyfyniad MLA

World Health Organization, Geneva, et al. Environmental Health Criteria 120: Hexachlorocyclopentadiene: IPCS International Programme on Chemical Safety. World Health Organization, 1991.

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