Gupta K R. (2005). Encyclopaedia of environment, Vol.3: Global warming problems and policies. Atlantic.
Chicago Edition CitationGupta K R. Encyclopaedia of Environment, Vol.3: Global Warming Problems and Policies. New Delhi: Atlantic, 2005.
Cita MLAGupta K R. Encyclopaedia of Environment, Vol.3: Global Warming Problems and Policies. Atlantic, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.