APA (7th ed.) Citation

Ingram, T. N. (2009). Professional selling: A trust-based approach (4th ed.). Cengage Learning Asia.

Chicago Style (17th ed.) Citation

Ingram, Thomas N. Professional Selling: A Trust-based Approach. 4th ed. Pasig City: Cengage Learning Asia, 2009.

MLA (9th ed.) Citation

Ingram, Thomas N. Professional Selling: A Trust-based Approach. 4th ed. Cengage Learning Asia, 2009.