Não informado. (1970). The Journal of interdisciplinary history. Massachusetts Institute of Technology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. The Journal of Interdisciplinary History. Cambridge, Mass: Massachusetts Institute of Technology, 1970.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. The Journal of Interdisciplinary History. Massachusetts Institute of Technology, 1970.
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