Sanjay Gupta Ed. (2000). Yearbook of energy-environment statistics(yes)1999/2000. Bharat information Technology Services.
Chicago Edition CitationSanjay Gupta Ed. Yearbook of Energy-environment Statistics(yes)1999/2000. New Delhi: Bharat information Technology Services, 2000.
MLA Edition CitationSanjay Gupta Ed. Yearbook of Energy-environment Statistics(yes)1999/2000. Bharat information Technology Services, 2000.
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