Citazione Stile APA (7a Edizione)

Zemke, R., & Woods, J. A. (1999). Best practices in customer service (1st AMACOM ed.). AMACOM.

Citazione stile Chigago Style (17a edizione)

Zemke, Ron, e John A. Woods. Best Practices in Customer Service. 1st AMACOM ed. New York: AMACOM, 1999.

Citatione MLA (9a ed.)

Zemke, Ron, e John A. Woods. Best Practices in Customer Service. 1st AMACOM ed. AMACOM, 1999.