APA (7th ed.) Citation

Holmes, C. (2007). The ultimate sales machine: Turbocharge your business with relentless focus on 12 key strategies. Portfolio.

Chicago Style (17th ed.) Citation

Holmes, Chet. The Ultimate Sales Machine: Turbocharge Your Business with Relentless Focus on 12 Key Strategies. New York: Portfolio, 2007.

MLA (8th ed.) Citation

Holmes, Chet. The Ultimate Sales Machine: Turbocharge Your Business with Relentless Focus on 12 Key Strategies. Portfolio, 2007.

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