Gaya APA

Bergeron, Bryan. (2002). Essentials of CRM : a guide to customer relatioship management . United State: Wiley.

Gaya Chicago

Bergeron, Bryan. Essentials of CRM : a guide to customer relatioship management. United State: Wiley, 2002. Text.

Gaya MLA

Bergeron, Bryan. Essentials of CRM : a guide to customer relatioship management. United State: Wiley, 2002. Text.

Gaya Turabian

Bergeron, Bryan. Essentials of CRM : a guide to customer relatioship management. United State: Wiley, 2002. Print.