| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| El Arbol Sagrado | 978-0-940985-54-4 (0-940985-54-3) | 2003 | Michael Bopp · Lee Brown · Phil Lane |
| Sacred Tree: Reflections on Native American Spirituality | 978-0-941524-58-2 (0-941524-58-2) | 1984 | |