| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| How to Start and Run Your Own Mystery Shopping Company | 978-0-9708865-2-1 (0-9708865-2-7) | 2001 | Lynette Janac |
| How to Start and Run Your Own Mystery Shopping Company | 978-0-9708865-0-7 (0-9708865-0-0) | 2000 | " |