Gupta, S. (2000). Global environment: Current status. Sarup & Sons.
Chicago Style (17th ed.) CitationGupta, Sunit. Global Environment: Current Status. New Delhi: Sarup & Sons, 2000.
MLA (9th ed.) CitationGupta, Sunit. Global Environment: Current Status. Sarup & Sons, 2000.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.