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Frogs of the genus Colostethus (Anura; Dendrobatidae) in the Andes of northern Peru / by William E. Duellman.
Publication info:
Lawrence, Kan. :Natural History Museum, University of Kansas,[2004]
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Frogs of the genus Eleutherodactylus (Leptodactylidae) in western Ecuador : systematics, ecology, and biogeography / John D. Lynch, William E. Duellman.
Publication info:
Lawrence, Kan. :Natural History Museum, University of Kansas,c1997.
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Guide to the frogs of the Iquitos region, Amazonian Peru / by Lily O. Rodr©guez and William E. Duellman.
Publication info:
[Lima?] :Asociaci©n de Ecolog©a y Conservaci©n ;1994.
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The hylid frogs of Middle America / William E. Duellman.
Publication info:
[Lawrence] :University of Kansas,1970.
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The South American herpetofauna : its origin, evolution, and dispersal / William E. Duellman, editor.
Publication info:
Lawrence, Kan. :Museum of Natural History, University of Kansas,1979.
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Two new species of marsupial frogs (Anura: Hylidae: Gastrotheca) from the Cordillera Oriental in central Peru / by William E. Duellman ... [et al.].
Publication info:
Lawrence, Kan. :Natural History Museum, University of Kansas,2004.
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