Παραπομπή APA

Sterne, J. (1996). Customer service on the Internet. John Wiley & sons.

Παραπομπή Chicago Style

Sterne, Jim. Customer Service on the Internet. New York: John Wiley & sons, 1996.

Παραπομπή MLA

Sterne, Jim. Customer Service on the Internet. John Wiley & sons, 1996.