Trivedy, R. (1990). River pollution in India. Ashish.
Chicagoスタイル(17版)引用形式Trivedy, R.K. River Pollution in India. New Delhi: Ashish, 1990.
MLA(9版)引用形式Trivedy, R.K. River Pollution in India. Ashish, 1990.
警告: この引用は必ずしも正確ではありません.
Trivedy, R. (1990). River pollution in India. Ashish.
Chicagoスタイル(17版)引用形式Trivedy, R.K. River Pollution in India. New Delhi: Ashish, 1990.
MLA(9版)引用形式Trivedy, R.K. River Pollution in India. Ashish, 1990.