Willingham. (2006). The inner game of selling: Mastering the hidden forces that determine your success. New York: Free Press.
Chicago Style CitationWillingham. The Inner Game of Selling: Mastering the Hidden Forces That Determine Your Success. New York: Free Press, 2006.
MLA CitationWillingham. The Inner Game of Selling: Mastering the Hidden Forces That Determine Your Success. New York: Free Press, 2006.
Warning: These citations may not always be 100% accurate.