Denton, D. K. (1990). How to give quality service to your customers. Universal.
Style de citation ChicagoDenton, D. Keith. How to Give Quality Service to Your Customers. New Delhi: Universal, 1990.
Style de citation MLADenton, D. Keith. How to Give Quality Service to Your Customers. Universal, 1990.
Attention : ces citations peuvent ne pas être correctes à 100%.