Inghilleri, L. (2010). Exceptional service, exceptional profit: The secrets of building a five-star customer service organization. American Management Association.
Chicago-Zitierstil (17. Ausg.)Inghilleri, Leonardo. Exceptional Service, Exceptional Profit: The Secrets of Building a Five-star Customer Service Organization. New York: American Management Association, 2010.
MLA-Zitierstil (9. Ausg.)Inghilleri, Leonardo. Exceptional Service, Exceptional Profit: The Secrets of Building a Five-star Customer Service Organization. American Management Association, 2010.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.