Cita APA (7th ed.)
Gross, T. S. (2004). Positively outrageous service: How to delight and astound your customers and win them for life (2nd ed.). Dearborn Trade.
Cita Chicago (17th ed.)
Gross, T. Scott. Positively Outrageous Service: How to Delight and Astound Your Customers and Win Them for Life. 2nd ed. Chicago: Dearborn Trade, 2004.
Cita MLA (9th ed.)
Gross, T. Scott. Positively Outrageous Service: How to Delight and Astound Your Customers and Win Them for Life. 2nd ed. Dearborn Trade, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.