APA aipamena

Denton, D. K. (1992). How to give quality service to your customers. Universal book stall.

Chicago Style aipamena

Denton, D. Keith. How to Give Quality Service to Your Customers. New Delhi: Universal book stall, 1992.

MLA aipamena

Denton, D. Keith. How to Give Quality Service to Your Customers. Universal book stall, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.