D.S. · David S. · David Schumacher · Ph.D.
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| "Buy & Hold 7 Steps to a Real Estate Fortune"- New 2007 | 978-0-9701162-4-6 (0-9701162-4-1) | 2007 |
| "Buy & Hold 7 Steps to a Real Estate Fortune"- New 2007 Edition | 978-0-9701162-3-9 (0-9701162-3-3) | 2007 |