10 books • 5 series
The Amphibians and Reptiles of Michigan (Great Lakes Books)
Fossil Salamanders of North America (Life of the Past)
Fossil Frogs and Toads of North America (Life of the Past)
In Quest of Great Lakes Ice Age Vertebrates
Fossil Snakes of North America (Life of the Past)
Pleistocene Amphibians and Reptiles in Britain and Europe (Oxford Monographs on Geology and Geophysics, #38)
Michigan Turtles and Lizards Vol. E2234
Pleistocene Amphibians and Reptiles in North America (Oxford Monographs on Geology and Geophysics, #32)
Michigan Snakes (Extension Bulletin, #2000) (Reptiles & Amphibians)
Michigan Frogs, Toads and Salamanders (Extension Bulletin, #2350)