- Livre électroniqueNorth American Recent Soft-shelled Turtles (Family Trionychidae)Robert G. Webb
- Livre électroniqueNorth American Recent Soft-Shelled Turtles (Family Trionychidae)Robert G. Webb
- Livre électroniqueA New Species of Frog (Genus Tomodactylus) from Western MexicoRobert G. Webb
- Livre électroniqueDescription of a New Softshell Turtle From the Southeastern United StatesRobert G. Webb
- Livre électroniqueSome Reptiles and Amphibians from KoreaGeorge W. Byers
- Livre électroniqueA New Species of Frog (Genus Tomodactylus) from Western MexicoRobert G. Webb
- Livre électroniqueSome Reptiles and Amphibians from KoreaGeorge W. Byers
- Livre électroniqueNorth American Recent Soft-Shelled Turtles (Family Trionychidae)Robert G. Webb