| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Principles of Horseshoeing P3: The Ultimate Textbook of Farrier Science and Craftsmanship for the 21st Century | 978-O-916992-26-2 (O-916992-26-8) | 2004 | Doug Butler · jacob Butler |
D B · D. Butler · D D · Doug Butler · Dr. D