Brands, H. W. (1999). Masters of enterprise: Giants of American business from John Jacob Astor and J. P. Morgan to Bill Gates and Oprah Winfrey. The Free Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBrands, H. W. Masters of Enterprise: Giants of American Business from John Jacob Astor and J. P. Morgan to Bill Gates and Oprah Winfrey. New York, N. Y: The Free Press, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBrands, H. W. Masters of Enterprise: Giants of American Business from John Jacob Astor and J. P. Morgan to Bill Gates and Oprah Winfrey. The Free Press, 1999.
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