APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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