APA (7th ed.) Citation

Huggins, W. R. (1999). Getting Tough Customers To Yes. Synergy Book International.

Chicago Style (17th ed.) Citation

Huggins, William R. Getting Tough Customers To Yes. Kuala Lumpur: Synergy Book International, 1999.

MLA (9th ed.) Citation

Huggins, William R. Getting Tough Customers To Yes. Synergy Book International, 1999.