Não informado. (2000). University of Wisconsin studies in the social science and history. University of Wisconsin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. University of Wisconsin Studies in the Social Science and History. Madison, Wis: University of Wisconsin, 2000.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. University of Wisconsin Studies in the Social Science and History. University of Wisconsin, 2000.
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