Zeithaml, Valarie A.
Delivering quality service; balancing customer perceptions and expectations - New York The Free press 1990 - xii, 226 p.
29357012
Customer service
658.8 / ZEI
Delivering quality service; balancing customer perceptions and expectations - New York The Free press 1990 - xii, 226 p.
29357012
Customer service
658.8 / ZEI