Glanz, B. A. (2007). Care packages for your customers: An idea a week to enhance customer service. New York: McGraw-Hill.
Παραπομπή Chicago StyleGlanz, Barbara A. Care Packages for Your Customers: An Idea a Week to Enhance Customer Service. New York: McGraw-Hill, 2007.
Παραπομπή MLAGlanz, Barbara A. Care Packages for Your Customers: An Idea a Week to Enhance Customer Service. New York: McGraw-Hill, 2007.
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