Krishna, G., & Anilkumar, A. (2003). River pollution in india and its management. APH Publishing Corporation.
Chicago Style aipamenaKrishna, Gopal, and Agarwal Anilkumar. River Pollution in India and Its Management. New Delhi: APH Publishing Corporation, 2003.
MLA aipamenaKrishna, Gopal, and Agarwal Anilkumar. River Pollution in India and Its Management. APH Publishing Corporation, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.