APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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