Dyfyniad APA

Office of Technology Assessment. (1979). Environmental contaminants in food. OTA.

Dyfyniad Arddull Chicago

Office of Technology Assessment. Environmental Contaminants in Food. Washington, D.C: OTA, 1979.

Dyfyniad MLA

Office of Technology Assessment. Environmental Contaminants in Food. OTA, 1979.

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