Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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