| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| From the Field | 978-0-9685879-5-9 (0-9685879-5-X) | 2010 |
| Greater Hamilton: From the Heart | 978-0-9685879-0-4 (0-9685879-0-9) | 1999 |
| Outward Bound: The Inward Odyssey Volume 2 | 978-0-9685879-1-1 (0-9685879-1-7) | 2002 |
Marc Zollinger · Marek Zielianski · Marek Zielinski · Mark Zwolinski · Marko Zlomislic