APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.