Krishna, G., & Anilkumar, A. (2003). River pollution in india and its management. APH Publishing Corporation.
シカゴスタイル引用形Krishna, Gopal, , Agarwal Anilkumar. River Pollution in India and Its Management. New Delhi: APH Publishing Corporation, 2003.
MLA引用形式Krishna, Gopal, , Agarwal Anilkumar. River Pollution in India and Its Management. APH Publishing Corporation, 2003.
警告: この引用は必ずしも正確ではありません.