Steinfeld, R. J. (2001). Coercion, contract and free labour in the 19th Century. The University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSteinfeld, Robert J. Coercion, Contract and Free Labour in the 19th Century. The University Press, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSteinfeld, Robert J. Coercion, Contract and Free Labour in the 19th Century. The University Press, 2001.
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