| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| An Angler's Guide to Aquatic Insects and Their Imitations for All North America | 978-1-55566-161-8 (1-55566-161-0) | 1995 | Rick Hafele |
| Birding: Rocky Mountain National Park | 978-1-55566-318-6 (1-55566-318-4) | 2002 | |