Dyfyniad APA

World Health Organization, United Nations Environment Programme, & International Radiation Protection Association. (1979). Ultraviolet radiation. World Health Organization ; obtainable from WHO Publications Centre USA].

Dyfyniad Arddull Chicago

World Health Organization, United Nations Environment Programme, and International Radiation Protection Association. Ultraviolet Radiation. Geneva : [Albany, N.Y.: World Health Organization ; obtainable from WHO Publications Centre USA], 1979.

Dyfyniad MLA

World Health Organization, et al. Ultraviolet Radiation. World Health Organization ; obtainable from WHO Publications Centre USA], 1979.

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