Singh, K. (2010). Natural and man made disasters. MD Publisher.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSingh, K.K. Natural and Man Made Disasters. MD Publisher, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSingh, K.K. Natural and Man Made Disasters. MD Publisher, 2010.
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