Dyfyniad APA

Knopkar,S.M. (2015). Environmental pollution: Monitoring & control:2 nd ed. New Age International.

Dyfyniad Arddull Chicago

Knopkar,S.M. Environmental Pollution: Monitoring & Control:2 Nd Ed. New Delhi: New Age International, 2015.

Dyfyniad MLA

Knopkar,S.M. Environmental Pollution: Monitoring & Control:2 Nd Ed. New Age International, 2015.

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