Curtis, M. (1981). The Great political theories (New, expanded edition.). Avon Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCurtis, Michael. The Great Political Theories. New, expanded edition. New York: Avon Books, 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCurtis, Michael. The Great Political Theories. New, expanded edition. Avon Books, 1981.
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