APA (7th ed.) Citation

SULLIVAN. (2005). 20 Days To The Top: How the precise selling formula will make your company's top sales performer in 20 days or less. Source Books.

Chicago Style (17th ed.) Citation

SULLIVAN. 20 Days To The Top: How the Precise Selling Formula Will Make Your Company's Top Sales Performer in 20 Days or Less. Illinois: Source Books, 2005.

MLA (9th ed.) Citation

SULLIVAN. 20 Days To The Top: How the Precise Selling Formula Will Make Your Company's Top Sales Performer in 20 Days or Less. Source Books, 2005.