J.K · J. Klymshyn · John K.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| 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 |