Irons, K. (1997). The world of superservice: Creating profit through a passion for customer service. Harlow: Addison-Wesley.
Trích dẫn kiểu ChicagoIrons, Ken. The World of Superservice: Creating Profit Through a Passion for Customer Service. Harlow: Addison-Wesley, 1997.
MLA CitationIrons, Ken. The World of Superservice: Creating Profit Through a Passion for Customer Service. Harlow: Addison-Wesley, 1997.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.