Bertram D., W. (1969). An ideology in power: Reflections on the Russian revolution. George Allen and Unwin Ltd.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBertram D., Woolfe. An Ideology in Power: Reflections on the Russian Revolution. George Allen and Unwin Ltd, 1969.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBertram D., Woolfe. An Ideology in Power: Reflections on the Russian Revolution. George Allen and Unwin Ltd, 1969.
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