Gaya APA
FUTRELL, C, M.
(2007).
ABC s OF RELATIONSHIP SELLING THROUGH SERVICE Ninth Edition
(
-)
.
Avenue:
Mc Graw Hill.
Gaya MLA
FUTRELL, CHARLES, M..
"ABC s OF RELATIONSHIP SELLING THROUGH SERVICE Ninth Edition".
-
Avenue:
Mc Graw Hill,
2007.
Text.