Não informado. (1969). History of Political Economy. Duke University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. History of Political Economy. Durham, NC: Duke University Press, 1969.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. History of Political Economy. Duke University Press, 1969.
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