Annals of the American Association of Geographers. Association of American Geographers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAnnals of the American Association of Geographers. Association of American Geographers.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAnnals of the American Association of Geographers. Association of American Geographers.
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