Dyfyniad APA

(1988). Ecology and pollution of Indian rivers. Ashish Publishing House.

Dyfyniad Arddull Chicago

Ecology and Pollution of Indian Rivers. New Delhi: Ashish Publishing House, 1988.

Dyfyniad MLA

Ecology and Pollution of Indian Rivers. Ashish Publishing House, 1988.

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