APA (7th ed.) Citation

Sullivan. (2005). 20 days to the top: How the precise selling formula will make you your company's top sales performer in 20 days or less. Sourcebooks, Inc.

Chicago Style (17th ed.) Citation

Sullivan. 20 Days to the Top: How the Precise Selling Formula Will Make You Your Company's Top Sales Performer in 20 Days or Less. Naperville, Ill: Sourcebooks, Inc, 2005.

MLA (9th ed.) Citation

Sullivan. 20 Days to the Top: How the Precise Selling Formula Will Make You Your Company's Top Sales Performer in 20 Days or Less. Sourcebooks, Inc, 2005.

Warning: These citations may not always be 100% accurate.