BOYCE, R. R. (1974). The bases of economic geography: An essay on the spatial characteristics of man's economic activities. Holt.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBOYCE, Ronald Reed. The Bases of Economic Geography: An Essay on the Spatial Characteristics of Man's Economic Activities. New York: Holt, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBOYCE, Ronald Reed. The Bases of Economic Geography: An Essay on the Spatial Characteristics of Man's Economic Activities. Holt, 1974.
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