Business in Britain in the twentieth century. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBusiness in Britain in the Twentieth Century. Oxford University Press.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBusiness in Britain in the Twentieth Century. Oxford University Press.
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