Anil Kumar De. (2000). Environmental chemistry (4th ed.). New Age Intenational.
Dyfyniad Arddull ChicagoAnil Kumar De. Environmental Chemistry. 4th ed. New Delhi: New Age Intenational, 2000.
Dyfyniad MLAAnil Kumar De. Environmental Chemistry. 4th ed. New Age Intenational, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.