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- Электронная книгаThe Amphibians and Reptiles of Michoacán, MéxicoWilliam Edward Duellman
- Электронная книгаA Review of the Middle American Tree Frogs of the Genus PtychohylaWilliam Edward Duellman
- Электронная книгаA Taxonomic Study of the Middle American Snake, Pituophis deppeiWilliam Edward Duellman
- Электронная книгаThe Genera of Phyllomedusine Frogs (AnuraWilliam Edward Duellman
- Электронная книгаDescriptions of New Hylid Frogs From Mexico and Central AmericaWilliam Edward Duellman
- Электронная книгаA Distributional Study of the Amphibians of the Isthmus of Tehuantepec, MéxicoWilliam Edward Duellman
- Электронная книгаA Review of the Middle American Tree Frogs of the Genus PtychohylaWilliam Edward Duellman
- Электронная книгаA Review of the Frogs of the Hyla bistincta GroupWilliam Edward Duellman
- Электронная книгаThe Genera of Phyllomedusine Frogs (AnuraWilliam Edward Duellman
- Электронная книгаDescriptions of New Hylid Frogs From Mexico and Central AmericaWilliam Edward Duellman
- Электронная книгаThe Amphibians and Reptiles of Michoacán, MéxicoWilliam Edward Duellman