Gaya APA
Katz, Bernard. (1987).
How to turn customer service into customer sales .
USA:
NTC Business Book.
Gaya Chicago
Katz, Bernard.
How to turn customer service into customer sales.
USA:
NTC Business Book,
1987.
Text.
Gaya MLA
Katz, Bernard.
How to turn customer service into customer sales.
USA:
NTC Business Book,
1987.
Text.
Gaya Turabian
Katz, Bernard.
How to turn customer service into customer sales.
USA:
NTC Business Book,
1987.
Print.