W
3
Books
William Edward Duellman
Books
The Amphibians and Reptiles of Michoacán, MéxicoWilliam Edward Duellman4h 34m$2 · $0.00
Type specimens of amphibians and reptiles in the Museum of Natural History, the University of KansasWilliam Edward Duellman, Barbara Berg58m$2 · $0.00
A Review of the Middle American Tree Frogs of the Genus PtychohylaWilliam Edward Duellman2h 50m$2 · $0.00