Polsby, N. W. (1974). Political promises: Essays and commentary on American politics. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPolsby, Nelson W. Political Promises: Essays and Commentary on American Politics. Oxford University Press, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPolsby, Nelson W. Political Promises: Essays and Commentary on American Politics. Oxford University Press, 1974.
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