Cita APA (7a ed.)

Trivedy, R. (1990). River pollution in India. Ashish.

Cita Chicago Style (17a ed.)

Trivedy, R.K. River Pollution in India. New Delhi: Ashish, 1990.

Cita MLA (9a ed.)

Trivedy, R.K. River Pollution in India. Ashish, 1990.