"Ulam, A. B. (1960). The unfinished revolution: An essay on the sources of influence of marxism and communism. Vintage books publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Ulam, Adam B". The Unfinished Revolution: An Essay on the Sources of Influence of Marxism and Communism. Vintage books publishers, 1960.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Ulam, Adam B". The Unfinished Revolution: An Essay on the Sources of Influence of Marxism and Communism. Vintage books publishers, 1960.
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