MONTGOMERY, C. W. (2011). Environmental geology. McGraw-Hill Book Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMONTGOMERY, Carla W. Environmental Geology. McGraw-Hill Book Company, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMONTGOMERY, Carla W. Environmental Geology. McGraw-Hill Book Company, 2011.
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