Παραπομπή APA

Sharp, D. E. (2003). Call Center operation: Design, operation, and maintenance. Amsterdam ; Boston: Digital Press.

Παραπομπή Chicago Style

Sharp, Duane E. Call Center Operation: Design, Operation, and Maintenance. Amsterdam ; Boston: Digital Press, 2003.

Παραπομπή MLA

Sharp, Duane E. Call Center Operation: Design, Operation, and Maintenance. Amsterdam ; Boston: Digital Press, 2003.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.