एपीए उद्धरण

Krishna, G., & Anilkumar, A. (2003). River pollution in india and its management. APH Publishing Corporation.

शिकागो स्टाइल उद्धरण

Krishna, Gopal, और Agarwal Anilkumar. River Pollution in India and Its Management. New Delhi: APH Publishing Corporation, 2003.

एमएलए उद्धरण

Krishna, Gopal, और Agarwal Anilkumar. River Pollution in India and Its Management. APH Publishing Corporation, 2003.