Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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