Willingham, R. Integrity selling for the 21st century: How to sell the way people want to buy. New York: Currency/Doubleday.
Chicago Style CitationWillingham, Ron. Integrity Selling for the 21st Century: How to Sell the Way People Want to Buy. New York: Currency/Doubleday.
MLA CitationWillingham, Ron. Integrity Selling for the 21st Century: How to Sell the Way People Want to Buy. New York: Currency/Doubleday.
Warning: These citations may not always be 100% accurate.