Krishna, G., & Anilkumar, A. (2003). River pollution in india and its management. APH Publishing Corporation.
Styl ChicagoKrishna, Gopal, a Agarwal Anilkumar. River Pollution in India and Its Management. New Delhi: APH Publishing Corporation, 2003.
Citace podle MLAKrishna, Gopal, a Agarwal Anilkumar. River Pollution in India and Its Management. APH Publishing Corporation, 2003.
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