Gauhati University. Dept. of Geography. (1968). Assam: An outline : 21st International Geographical Congress, India, 1968 : Souvenir. Department of Geography, Gauhati University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGauhati University. Dept. of Geography. Assam: An Outline : 21st International Geographical Congress, India, 1968 : Souvenir. Department of Geography, Gauhati University, 1968.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGauhati University. Dept. of Geography. Assam: An Outline : 21st International Geographical Congress, India, 1968 : Souvenir. Department of Geography, Gauhati University, 1968.
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