Bacal, R. (2005). Perfect phrases for customer service: Hundreds of tools, techniques, and scripts for handling any situation. McGraw-Hill.
Citação norma ChicagoBacal, Robert. Perfect Phrases for Customer Service: Hundreds of Tools, Techniques, and Scripts for Handling Any Situation. New York: McGraw-Hill, 2005.
Citação norma MLABacal, Robert. Perfect Phrases for Customer Service: Hundreds of Tools, Techniques, and Scripts for Handling Any Situation. McGraw-Hill, 2005.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.