E Duellman William

A Distributional Study Of The Amphibians Of The Isthmus Of Tehuantepec, Mexico

Amphibians And Reptiles Of The Rainforests Of Southern El Petén, Guatemala

Liste Der Rezenten Amphibien Und Reptilien. Hylidae, Centrolenidae, Pseudidae

Marsupial Frogs

Descriptions Of New Hylid Frogs From Mexico And Central America