George B. · George Bradley · Y.B.
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| First Through Grand Canyon: The Secret Journals & Letters of the 1869 Crew Who Explored the Green & Colorado Rivers | 978-0-9700973-2-3 (0-9700973-2-8) | 2003 | Michael P. Ghiglieri |
| First Through Grand Canyon: the secret journals & letters of the 1869 crew who explored the Green & Colorado rivers | 978-0-9700973-3-0 (0-9700973-3-6) | 2003 | " |