Style de citation APA (7e éd.)

Tiwari, S. (2007). Global warming and its effects on environment. Adhyayan.

Style de citation Chicago (17e éd.)

Tiwari, Som. Global Warming and Its Effects on Environment. New Delhi: Adhyayan, 2007.

Style de citation MLA (9e éd.)

Tiwari, Som. Global Warming and Its Effects on Environment. Adhyayan, 2007.