Gaya APA
Stern, Jim. (1996).
Customer Service on the Internet .
United States:
Wiley Inc.
Gaya Chicago
Stern, Jim.
Customer Service on the Internet.
United States:
Wiley Inc,
1996.
Text.
Gaya MLA
Stern, Jim.
Customer Service on the Internet.
United States:
Wiley Inc,
1996.
Text.
Gaya Turabian
Stern, Jim.
Customer Service on the Internet.
United States:
Wiley Inc,
1996.
Print.