T. D. · T. Dumont · Theron D. · Theron Q. Dumont
BiblioBazaar · CreateSpace Independent Publishing Platform
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Power of Concentration | 978-1-4537-4920-3 (1-4537-4920-9) | 2010 |
| The Power of Concentration | 978-1-4264-0020-9 (1-4264-0020-9) | 2007 |