J.K. ยท J. Klymshyn
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| How to Sell without Being a Jerk!: The Foolproof Approach to the World's Second Oldest Profession | 978-0-470-22455-7 (0-470-22455-X) | 2008 |
| The Ultimate Sales Managers' Guide | 978-0-471-97318-8 (0-471-97318-1) | 2006 |