Não informado. (1982). Contributions to Political Economy. Academic Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Contributions to Political Economy. London: Academic Press, 1982.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Contributions to Political Economy. Academic Press, 1982.
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