Bukharin, N. (1928). Historical materialism: A system of sociology (3rd rep.). George Allen & Unwin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBukharin, Nikolai. Historical Materialism: A System of Sociology. 3rd rep. George Allen & Unwin, 1928.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBukharin, Nikolai. Historical Materialism: A System of Sociology. 3rd rep. George Allen & Unwin, 1928.
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