| title | ISBN-13 | year of publication |
|---|---|---|
| Backroads of Texas: Along the Byways to Breathtaking Landscapes and Quirky Small Towns | 978-0-7603-5053-9 | 2016 |
| Backroads of the Texas Hill Country: Your Guide to the Most Scenic Adventures | 978-0-7603-2690-9 | 2008 |
| Birds of Southeast Texas & the Upper Texas Coast: A Guide to Common & Notable Species | 978-0-9825516-1-5 | 2010 |
| Enjoying Big Bend National Park: A Friendly Guide to Adventures for Everyone | 978-1-60344-101-8 | 2009 |
G. C. · G. Clark · Gary B. Clark · Gary Clark Ed.D. · Gary M. Clark
Motorbooks · Quick Reference Publishing, Inc. · Texas A&M University Press