Rajagopalan R. (2017). Environmental Studies: From crisis to Cure (6th ed.). Oxford.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRajagopalan R. Environmental Studies: From Crisis to Cure. 6th ed. New Delhi: Oxford, 2017.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRajagopalan R. Environmental Studies: From Crisis to Cure. 6th ed. Oxford, 2017.
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