The Mental Toughness Challenge Journal: A 90-Day Journey of Discipline, Resilience, and Progress — With Daily Checklists, Prompts, and Progress Tracking for Your Mind, Body, and Habits
| Country | USA |
| Brand | O'Reilly |
| Manufacturer | O'Reilly Media |
| Binding | Paperback |
| ReleaseDate | 1988-05-10 |
| UnitCount | 1 |
| EANs | 9780937175224 |