Denton, D. K. (1990). How to give quality service to your customers. Universal.
Chicago-stil citatDenton, D. Keith. How to Give Quality Service to Your Customers. New Delhi: Universal, 1990.
MLA-referensDenton, D. Keith. How to Give Quality Service to Your Customers. Universal, 1990.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.