Key to the Herpetofauna of the Continental United States and Canada: Second Edition, Revised and Updated
Peterson Field Guide to Reptiles and Amphibians of Eastern and Central North America, Fourth Edition (Peterson Field Guides)
Kansas Fishes
Trees, Shrubs, and Woody Vines in Kansas
Missouri Wildflowers: A Field Guide to the Wildflowers of Missouri
A Field Guide to Oklahoma's Amphibians and Reptiles
A Field Guide to Amphibians and Reptiles in Arizona
Handbook of Larval Amphibians of the United States and Canada
Amphibians and Reptiles of Nebraska
Kansas Wildflowers and Weeds