| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Enemy of Engagement: Put an End to Workplace Frustration--and Get the Most from Your Employees | 978-0-8144-1795-9 (0-8144-1795-7) | 2011 | Tom Agnew |
| Wróg zaangazowania: Skoncz z frustracja pracowników i uwolnij caly ich potencjal. | 978-83-264-0771-0 (83-264-0771-2) | ||