Dyfyniad APA

De,A.K. (2007). Environmental Chemistry. New Age International Publishers Ltd.

Dyfyniad Arddull Chicago

De,A.K. Environmental Chemistry. New Delhi: New Age International Publishers Ltd, 2007.

Dyfyniad MLA

De,A.K. Environmental Chemistry. New Age International Publishers Ltd, 2007.

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