Tohutoro APA (7th ed.)

Kaushik, A., & Kaushik, C. P. (2004). Perspectives in environmental studies (2nd ed.). New Age International (P) Ltd., Publishers.

Tohutoru Kātū Chicago (17th ed.)

Kaushik, Anubha, me C. P. Kaushik. Perspectives in Environmental Studies. 2nd ed. New Delhi: New Age International (P) Ltd., Publishers, 2004.

Tohutoro MLA (9th ed.)

Kaushik, Anubha, me C. P. Kaushik. Perspectives in Environmental Studies. 2nd ed. New Age International (P) Ltd., Publishers, 2004.