Timm, P. R. (2008). Customer service: Career success through customer loyalty. Pearson.
Citazione stile Chigago Style (17a edizione)Timm, Paul R. Customer Service: Career Success Through Customer Loyalty. Delhi: Pearson, 2008.
Citatione MLA (9a ed.)Timm, Paul R. Customer Service: Career Success Through Customer Loyalty. Pearson, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.