E-book

A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, México

E-book

Amphibians and Reptiles of the Rainforests of Southern El Petén, Guatemala

E-book

A Review of the Frogs of the Hyla bistincta Group

E-book

Amphibians and Reptiles of the Rainforests of Southern El Petén, Guatemala

E-book

The Amphibians and Reptiles of Michoacán, México

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The Genera of Phyllomedusine Frogs (Anura: Hylidae)

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A Review of the Middle American Tree Frogs of the Genus Ptychohyla

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A Taxonomic Study of the Middle American Snake, Pituophis deppei

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Descriptions of New Hylid Frogs From Mexico and Central America

E-book

Descriptions of New Hylid Frogs From Mexico and Central America

E-book

A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, México