Blanchard, K., Bowles, S. M., & Mackay, H. (1993). Raving fans: A revolutionary approach to customer service. The Business Library.
Chicago-viite (17. p.)Blanchard, Kenenth, Sheldon M. Bowles, ja Harvey Mackay. Raving Fans: A Revolutionary Approach to Customer Service. Melbourne: The Business Library, 1993.
MLA-viite (9. p.)Blanchard, Kenenth, et al. Raving Fans: A Revolutionary Approach to Customer Service. The Business Library, 1993.
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