Haupt, G. (1973). Socialism and the great war: The collapse of the second international. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHaupt, Georges. Socialism and the Great War: The Collapse of the Second International. Oxford University Press, 1973.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHaupt, Georges. Socialism and the Great War: The Collapse of the Second International. Oxford University Press, 1973.
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