Cita APA (7th ed.)

Timm, P. R. (2008). Customer service: Career success through customer loyalty (4th ed.). Pearson.

Cita Chicago (17th ed.)

Timm, Paul R. Customer Service: Career Success Through Customer Loyalty. 4th ed. Upper Saddle, River, NJ: Pearson, 2008.

Cita MLA (9th ed.)

Timm, Paul R. Customer Service: Career Success Through Customer Loyalty. 4th ed. Pearson, 2008.