APA Style
Davidow, W, H., Uttal, B. (1989).
Total Customer Service : The Ultimate Weapon (1).
United States of America:
Harper & Row.
MLA Style
Davidow, William, H., Uttal, Bro.
"Total Customer Service : The Ultimate Weapon".
1
United States of America:
Harper & Row,
1989.
Manajemen.