BFC Group · Eagle One Publishing
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Appreciation Marketing Audiobook | 978-0-9842703-8-5 (0-9842703-8-8) | 2010 | Curtis Lewsey |
| Appreciation Marketing - How to Achieve Greatness Through Gratitude | 978-0-9824663-0-8 (0-9824663-0-7) | 2009 | |