APA Style
zeithaml, valarie a.. (1990).
DELIVERING QUALITY SERVICE .
New York:
The Free press.
Chicago Style
zeithaml, valarie a..
DELIVERING QUALITY SERVICE .
New York:
The Free press,
1990.
Text.
MLA Style
zeithaml, valarie a..
DELIVERING QUALITY SERVICE .
New York:
The Free press,
1990.
Text.
Turabian Style
zeithaml, valarie a..
DELIVERING QUALITY SERVICE .
New York:
The Free press,
1990.
Print.