Harmon, F. G. (1996). Playing for keeps: How the world's most aggressive and admired companies use core values to manage, energize, and organize their people and promote, advance, and achieve their corporate missions. J. Wiley.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHarmon, Frederick G. Playing for Keeps: How the World's Most Aggressive and Admired Companies Use Core Values to Manage, Energize, and Organize Their People and Promote, Advance, and Achieve Their Corporate Missions. New York: J. Wiley, 1996.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHarmon, Frederick G. Playing for Keeps: How the World's Most Aggressive and Admired Companies Use Core Values to Manage, Energize, and Organize Their People and Promote, Advance, and Achieve Their Corporate Missions. J. Wiley, 1996.
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