Weaver, J. C. (1957). Physical elements of geography (4th ed.). McGraw-Hill Book Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWeaver, John C. Physical Elements of Geography. 4th ed. New York: McGraw-Hill Book Company, 1957.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWeaver, John C. Physical Elements of Geography. 4th ed. McGraw-Hill Book Company, 1957.
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