APA aipamena

Khanna,D R, Chopra,A K, Vikas Singh, & Bhutiani,R. (2013). Environmental Management. Daya.

Chicago Style aipamena

Khanna,D R, Chopra,A K, Vikas Singh, and Bhutiani,R. Environmental Management. New Delhi: Daya, 2013.

MLA aipamena

Khanna,D R, et al. Environmental Management. Daya, 2013.