Dyfyniad APA
World Health Organization & ebrary, Inc. (2005). Principles of characterizing and applying human exposure models. World Health Organization.
Dyfyniad Arddull Chicago
World Health Organization and Inc ebrary. Principles of Characterizing and Applying Human Exposure Models. Geneva: World Health Organization, 2005.
Dyfyniad MLA
World Health Organization and Inc ebrary. Principles of Characterizing and Applying Human Exposure Models. World Health Organization, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.