APA aipamena

Krishna Gopal; Agarwal, A. K. (2003). River pollution in india and its management.

Chicago Style aipamena

Krishna Gopal; Agarwal, Anil Kumar. River Pollution in India and Its Management. APH Publishing Corporation, New Delhi, 2003.

MLA aipamena

Krishna Gopal; Agarwal, Anil Kumar. River Pollution in India and Its Management. 2003.