Timm, P. R. (2005). Customer service: Career success through customer satisfaction. New Jersey: Pearson Prentice Hall.
Dyfyniad Arddull ChicagoTimm, Paul R. Customer Service: Career Success Through Customer Satisfaction. New Jersey: Pearson Prentice Hall, 2005.
Dyfyniad MLATimm, Paul R. Customer Service: Career Success Through Customer Satisfaction. New Jersey: Pearson Prentice Hall, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.