Dyfyniad APA

Edwards, C. A. (1972). Environmental pollution by pesticides. Plenum.

Dyfyniad Arddull Chicago

Edwards, C A. Environmental Pollution by Pesticides. London: Plenum, 1972.

Dyfyniad MLA

Edwards, C A. Environmental Pollution by Pesticides. Plenum, 1972.

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