APA استشهاد

Gupta K R. (2005). Encyclopaedia of environment, Vol.3: Global warming problems and policies. Atlantic.

استشهاد بنمط شيكاغو

Gupta K R. Encyclopaedia of Environment, Vol.3: Global Warming Problems and Policies. New Delhi: Atlantic, 2005.

MLA استشهاد

Gupta K R. Encyclopaedia of Environment, Vol.3: Global Warming Problems and Policies. Atlantic, 2005.