| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Successful direct selling: How to plan, launch, promote and maintain a profitable direct-selling company | 978-O-13-86O726-5 (O-13-86O726-5) | 1984 |
A. B. · A. Bernstein · R. A. · R. B. · Ronald A. · Ronald B. · Ronald Bernstein