APA ציטוט

Kaushik, A. (2012). Perspective in Environmental Studies (3rd.). New Age.

Chicago Style (17th ed.) Citation

Kaushik, A. Perspective in Environmental Studies. 3rd. New Delhi: New Age, 2012.

ציטוט MLA

Kaushik, A. Perspective in Environmental Studies. 3rd. New Age, 2012.