G. C. · G. N. · G Nichols · Gary Nichols
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| River Runners' Guide To Utah and Adjacent Areas | 978-0-87480-725-7 (0-87480-725-5) | 2002 |
| River Runners' Guide to Utah and Adjacent Areas | 978-0-87480-254-2 (0-87480-254-7) | 1986 |