Gaya APA
Lucas, Robert W. (2009).
CUSTOMER SERVICE (Fourth Edition) (4).
SINGAPORE:
MC GRAW HILL.
Gaya Chicago
Lucas, Robert W.
CUSTOMER SERVICE (Fourth Edition).
4
SINGAPORE:
MC GRAW HILL,
2009.
Text.
Gaya MLA
Lucas, Robert W.
CUSTOMER SERVICE (Fourth Edition).
4
SINGAPORE:
MC GRAW HILL,
2009.
Text.
Gaya Turabian
Lucas, Robert W.
CUSTOMER SERVICE (Fourth Edition).
4
SINGAPORE:
MC GRAW HILL,
2009.
Print.