| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Unleash the Warrior Within: Develop the Focus, Discipline, Confidence, and Courage You Need to Achieve Unlimited Goals | 978-0-7382-1568-6 (0-7382-1568-6) | 2011 |
| Unleash the Warrior Within: Develop the Focus, Discipline, Confidence, and Courage You Need to Achieve Unlimited Goals | 978-0-7382-1248-7 (0-7382-1248-2) | 2008 |
M M · R. M. · R. Mack · Richard M. · Richard Machowicz · Richard Mack