WILLINGHAM. (2003). Integrity selling for the 21st century: How to sell the way people want to buy. Currency.
Chicago Style (17th ed.) CitationWILLINGHAM. Integrity Selling for the 21st Century: How to Sell the Way People Want to Buy. New York: Currency, 2003.
MLA (9th ed.) CitationWILLINGHAM. Integrity Selling for the 21st Century: How to Sell the Way People Want to Buy. Currency, 2003.
Warning: These citations may not always be 100% accurate.