Richard George Zweifel

1926

• Encyclopedia of Animals
• Encyclopedia of reptiles & amphibians
• Encyclopedia of reptiles & amphibians
• Reptiles & amphibians
• A new cryptic species of Microhylid frog (genus Cophixalus) from Papus New Guinea, with notes on related forms
• A new species of frog from Australia (Microhylidae, Cophixalus)
• A revision of the frogs of the subfamily Asterophryinae, family Microhylidae
• Anfibi e rettili
• Australian Frogs of the Family Microhylidae (Bulletin of the American Museum of Natural History, Vol 182, Article 3)
• Ecology, distribution, and systematics of frogs of the Rana boylei group
• Encyklopedia zwierzat "Gady i płazy"
• Frogs and lizards from the Huon Peninsula, Papua New Guinea