Trivedy, R. (1990). River pollution in India. Ashish.
Cita Chicago (17th ed.)Trivedy, R.K. River Pollution in India. New Delhi: Ashish, 1990.
Cita MLA (9th ed.)Trivedy, R.K. River Pollution in India. Ashish, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.