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Books about Frogs -- Central America (sorted by popularity)
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The Systematics of the Frogs of the Hyla Rubra Group in Middle America
Juan R. León
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https://sendtokindle.compellingsciencefiction.com/ebooks/34604.opds
Middle American Frogs of the Hyla microcephala Group
William Edward Duellman and M. J. Fouquette
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https://sendtokindle.compellingsciencefiction.com/ebooks/33967.opds
Descriptions of New Hylid Frogs From Mexico and Central America
William Edward Duellman