Mcdonald Duff. (2013). firm: The story of McKinsey and its secret influence on American business. Simon & Schuster.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMcdonald Duff. Firm: The Story of McKinsey and Its Secret Influence on American Business. New York: Simon & Schuster, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMcdonald Duff. Firm: The Story of McKinsey and Its Secret Influence on American Business. Simon & Schuster, 2013.
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