Upadhyaya, J. Environmental Law (4th.). Central Law Agency.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUpadhyaya, J.J. Environmental Law. 4th. Allahabad Allahabad: Central Law Agency.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUpadhyaya, J.J. Environmental Law. 4th. Central Law Agency.
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