Cita APA

Tripathi, A., & Pandey, S. (1990). Water Pollution. Ashish Pub. House.

Chicago Edition Citation

Tripathi, A.K, i S.N Pandey. Water Pollution. New Delhi: Ashish Pub. House, 1990.

Cita MLA

Tripathi, A.K, i S.N Pandey. Water Pollution. Ashish Pub. House, 1990.