Dyfyniad APA
De, A. K. (2006). Environmental Chemistry (6th ed.). New Age International.
Dyfyniad Arddull Chicago
De, Anil Kumar. Environmental Chemistry. 6th ed. New Delhi: New Age International, 2006.
Dyfyniad MLA
De, Anil Kumar. Environmental Chemistry. 6th ed. New Age International, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.