एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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