| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Customer Obsession: How to Acquire, Retain, and Grow Customers in the New Age of Relationship Marketing | 978-0-07-149704-6 (0-07-149704-8) | 2008 | Ricardo Pomeranz |
| La Obsesión Por El Cliente | 978-607-15-0227-8 (607-15-0227-6) | 2009 | |
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