APA
Jay R., . (1999). Smart things to know about customers. Oxford: Capstone.
Chicago
Jay Ros, . 1999. Smart things to know about customers. Oxford: Capstone.
Harvard
Jay R., . (1999). Smart things to know about customers. Oxford: Capstone.
MLA
Jay Ros, . Smart things to know about customers. Oxford: Capstone. 1999.