Kumar, C. S. (1998). Environmental problem and development: A geographical study. Ganga-Kaveri.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKumar, Chandra Sekhar. Environmental Problem and Development: A Geographical Study. Ganga-Kaveri, 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKumar, Chandra Sekhar. Environmental Problem and Development: A Geographical Study. Ganga-Kaveri, 1998.
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