Found 2 books 
![[Gutenberg 33967] • Descriptions of New Hylid Frogs From Mexico and Central America](/cover/vBpGRBjYjmH1eRnC/small/[Gutenberg%2033967]%20%e2%80%a2%20Descriptions%20of%20New%20Hylid%20Frogs%20From%20Mexico%20and%20Central%20America.jpg)
[en] [Gutenberg 33967] • Descriptions of New Hylid Frogs From Mexico and Central America Createspace Independent Publishing Platform
![[Gutenberg 31830] • Genera of Leptodactylid Frogs in México](/cover/ppK78bz5O3OjGa1Y/small/[Gutenberg%2031830]%20%e2%80%a2%20Genera%20of%20Leptodactylid%20Frogs%20in%20M%c3%a9xico.jpg)
[en] [Gutenberg 31830] • Genera of Leptodactylid Frogs in México Quality Classics