Denny, R. (2001). Selling to win: Tested techniques for closing the sale (Rev. 2nd edition.). Kogan Page.
Cita Chicago Style (17a ed.)Denny, Richard. Selling to Win: Tested Techniques for Closing the Sale. Rev. 2nd edition. London: Kogan Page, 2001.
Cita MLA (8a ed.)Denny, Richard. Selling to Win: Tested Techniques for Closing the Sale. Rev. 2nd edition. Kogan Page, 2001.
Precaución: Estas citas no son 100% exactas.