Jones, W. Masters of political thought. Houghton Miffin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJones, W.T. Masters of Political Thought. Houghton Miffin.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJones, W.T. Masters of Political Thought. Houghton Miffin.
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