Barkin, K. D. (1970). Controversy over German industrialization 1890-1902. University of Chicago Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBarkin, Kenneth D. Controversy over German Industrialization 1890-1902. University of Chicago Press, 1970.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBarkin, Kenneth D. Controversy over German Industrialization 1890-1902. University of Chicago Press, 1970.
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