Denny Richard. (2003). Selling to win: Tested techniques for closing the sale (2.). Kogan Page.
Chicago Edition CitationDenny Richard. Selling to Win: Tested Techniques for Closing the Sale. 2. New Delhi: Kogan Page, 2003.
MLA引文Denny Richard. Selling to Win: Tested Techniques for Closing the Sale. 2. Kogan Page, 2003.
警告:這些引文格式不一定是100%准確.