T. C. · Ty Chris Colbert · Ty Colbert
| title | ISBN-13 (ISBN-10) | year of publica- tion | |
|---|---|---|---|
| Achieving Competitive Excellence | 978-0-9643635-9-5 (0-9643635-9-3) | 2005 | |
| Broken Brains or Wounded Hearts: What Causes Mental Illness | 978-0-9643635-4-0 (0-9643635-4-2) | 1996 | |
| Das verwundete Selbst | 978-3-89530-015-8 (3-89530-015-2) | 1999 |