Michel Lafon · Simon & Schuster Audio
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Customer Mania! It's Never Too Late to Build a Customer-Focused Company | 978-0-7432-7028-1 (0-7432-7028-2) | 2004 | Ken Blanchard · Jim Ballard |
| Customer Mania!: It's Never Too Late to Build a Customer - Focused Company | 978-0-7435-3978-4 (0-7435-3978-8) | 2004 | Ken Blanchard · Jim Ballard |
| La passion du Client !: Il est toujours temps d'aller à la rencontre du client | 978-2-7499-0441-2 (2-7499-0441-2) | 2005 | Ken Blanchard · Jim Ballard |