Freemantle David. (1998). What Customers Like About You: Adding emotional value for service excellence and competitive advantage. Nicholas Brealey Publishing.
Chicago-referens (17:e uppl.)Freemantle David. What Customers Like About You: Adding Emotional Value for Service Excellence and Competitive Advantage. London: Nicholas Brealey Publishing, 1998.
MLA-referens (9:e uppl.)Freemantle David. What Customers Like About You: Adding Emotional Value for Service Excellence and Competitive Advantage. Nicholas Brealey Publishing, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.