DAUGHERTY, R. (1974). Science in geography 2: Data collection. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDAUGHERTY, Richard. Science in Geography 2: Data Collection. Oxford: Oxford University Press, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDAUGHERTY, Richard. Science in Geography 2: Data Collection. Oxford University Press, 1974.
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