Gaddis, J. L. The landscape of history: How historians map the past. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGaddis, John Lewis. The Landscape of History: How Historians Map the Past. New York: Oxford University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGaddis, John Lewis. The Landscape of History: How Historians Map the Past. Oxford University Press.
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