| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Tools for Team Excellence: Getting Your Team into High Gear and Keeping it There | 978-0-89106-081-9 (0-89106-081-2) | 1996 |
| Tools for Team Leadership: Delivering the X-Factor in Team eXcellence | 978-0-89106-201-1 (0-89106-201-7) | 2004 |
Gregor Haas · Gregor Heise · Gregor Husi · Gregory E. Huszczo · Gregory Hayes · Gregory Hays