Timm, P. R. (2008). Customer service: Career success through customer loyalty (4th. ed.). Pearson.
Chicago ZitierstilTimm, Paul R. Customer Service: Career Success Through Customer Loyalty. 4th. ed. New Delhi: Pearson, 2008.
MLA ZitierstilTimm, Paul R. Customer Service: Career Success Through Customer Loyalty. 4th. ed. Pearson, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.