| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Introducing the Yellowstone Trail: A Good Road From Plymouth Rock to Puget Sound, 1912-1930 | 978-0-9702832-0-7 (0-9702832-0-2) | 2000 | John Wm. Ridge |
| Introducing the Yellowstone Trail: A Good Road from Plymouth Rock to Puget Sound | 978-0-9702832-4-5 (0-9702832-4-5) | 2014 | John W Ridge |