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  1. Amphibian species of the world : Additions and corrections / by William E. Duellman.
    By: Duellman, William Edward,
    Publication info: Lawrence :University of Kansas,1993.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  2. Amphibians of La Escalera Region, Southeastern Venezuela : taxonomy, ecology, and biogeography / by William E. Duellman.
    By: Duellman, William Edward,
    Publication info: Lawrence, Kansas :Natural History Museum, The University of Kansas,c1997.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  3. The Eleutherodactylus of the Amazonian slopes of the Ecuadorian Andes (Anura : Leptodactylidae) / by John D. Lynch and William E. Duellman.
    By: Lynch, John D. - Duellman, William Edward,
    Publication info: Lawrence :University of Kansas,1980.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  4. Frogs of the genus Colostethus (Anura; Dendrobatidae) in the Andes of northern Peru / by William E. Duellman.
    By: Duellman, William Edward, - University of Kansas.
    Publication info: Lawrence, Kan. :Natural History Museum, University of Kansas,[2004]
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  5. Frogs of the genus Eleutherodactylus (Anura: Leptodactylidae) in the Andes of northern Peru / by William E. Duellman and Jennifer B. Pramuk.
    By: Duellman, William Edward, - Pramuk, Jennifer B.
    Publication info: Lawrence, Kan. :Natural History Museum, University of Kansas,[1999]
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  6. Frogs of the genus Eleutherodactylus (Leptodactylidae) in western Ecuador : systematics, ecology, and biogeography / John D. Lynch, William E. Duellman.
    By: Lynch, John D. - Duellman, William Edward,
    Publication info: Lawrence, Kan. :Natural History Museum, University of Kansas,c1997.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  7. Frogs of the Hyla armata and the Hyla pulchella groups in the Andes of South America, with definitions and analyses of phylogenetic relationships of Andean groups of Hyla / by William E. Duellman, Ignacio de la Riva, and Erik R. Wild.
    By: Duellman, William Edward, - Riva, Ignacio de la. - Wild, Erik Russell. - University of Kansas.
    Publication info: Lawrence, Kan. :Natural History Museum, The University of Kansas,c1997.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  8. Guide to the frogs of the Iquitos region, Amazonian Peru / by Lily O. Rodríguez and William E. Duellman.
    By: Rodríguez, Lily O. - Duellman, William Edward,
    Publication info: [Lima?] :Asociación de Ecología y Conservación ;1994.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  9. The hylid frogs of Middle America / William E. Duellman.
    By: Duellman, William Edward,
    Publication info: [Lawrence] :University of Kansas,1970.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  10. A new species of marsupial frog (Anura: Hylidae: Gastrotheca) from the Cordillera Azul in Peru / by William E. Duellman, Edgar Lehr, and Car Aguilar.
    By: Duellman, William Edward, - Aguilar, Car. - Lehr, Edgar.
    Publication info: Lawrence, Kan. :Natural History Museum, University of Kansas,2001.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  11. New species of stream-breeding hylid frogs from the northern versant of the highlands of Oaxaca, Mexico / by Jonathan A. Campbell and William E. Duellman.
    By: Campbell, Jonathan A. - Duellman, William Edward,
    Publication info: Lawrence, Kan. :Natural History Museum, University of Kansas,[2000]
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  12. The South American herpetofauna : its origin, evolution, and dispersal / William E. Duellman, editor.
    By: Duellman, William Edward, - Herpetologists League. - Society for the Study of Amphibians and Reptiles. - Symposium on the South American Herpetofauna
    Publication info: Lawrence, Kan. :Museum of Natural History, University of Kansas,1979.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  13. The taxonomy and phylogenetic relationships of the hylid frog genus Stefania / by William E. Duellman and Marinus S. Hoogmoed.
    By: Duellman, William Edward, - Hoogmoed, Marinus S. - University of Kansas.
    Publication info: Lawrence, Kan. :Museum of Natural History, University of Kansas,1984.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  14. Two new species of marsupial frogs (Anura: Hylidae: Gastrotheca) from the Cordillera Oriental in central Peru / by William E. Duellman ... [et al.].
    By: Duellman, William Edward,
    Publication info: Lawrence, Kan. :Natural History Museum, University of Kansas,2004.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
    View Book