Gaya APA
BARRERA, Rick. (2004).
Overpromise and overdeliver : the secrets of unshakeable customer loyalty .
New York:
Portfolio.
Gaya Chicago
BARRERA, Rick.
Overpromise and overdeliver : the secrets of unshakeable customer loyalty.
New York:
Portfolio,
2004.
Text.
Gaya MLA
BARRERA, Rick.
Overpromise and overdeliver : the secrets of unshakeable customer loyalty.
New York:
Portfolio,
2004.
Text.
Gaya Turabian
BARRERA, Rick.
Overpromise and overdeliver : the secrets of unshakeable customer loyalty.
New York:
Portfolio,
2004.
Print.