C.R. ยท C. Robbins
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Birding Trails Montana | 978-1-932098-99-0 (1-932098-99-2) | 2014 |
| Flyfisher's Guide to Montana | 978-1-932098-22-8 (1-932098-22-4) | 2013 |
| Great Places: Montana: A Recreational Guide to Montana's Public Lands and Historical Places for Birding, Hiking, Photography, Fishing, Huntin | 978-1-932098-59-4 (1-932098-59-3) | 2008 |