Books by William E. Duellman
Amphibians of Ecuador
Amphibians of Ecuador
Introduction to the Amphibians
Introduction to the Amphibians of Ecuador
Amphibians and Reptiles of Mic
Amphibians and Reptiles of Michoacan Mexico
Amphibians and Reptiles of the
Amphibians and Reptiles of the Rainforests of Southern el Peten, Guatemala
Distributional Study of the Am
Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico
Marsupial Frogs
Review of the Frogs of the Hyl
Review of the Frogs of the Hyla Bistincta Group
Patterns of Distribution of Amphibians
Frogs of the genus Eleutherodactylus (Leptodactylidae) in western Ecuador
Amphibian Species of the World
Biology of amphibians
South American Herpetofauna
South American Herpetofauna
Liste der Rezenten Amphibien und Reptilien. Hylidae, Centrolenidae, Pseudidae