Incoming Resources
- 300 frogs, a visual reference to frogs and toads from around the world, Chris Mattison
- Hip-pocket papa
- Frogs, inside their remarkable world, Ellin Beltz
- Frog, Charlotte Sleigh
- And the bullfrogs sing, a life cycle begins, by David L. Harrison ; illustrated by Kate Cosgrove
- Qing wa ge shen, Zhang Dongjun wen ; Huang Lizhen tu
- Spotted singers
- Frogs
- Sounds of North American frogs, the biological significance of voice in frogs, Conceived, narrated, and documented, with field recordings, by Charles M. Bogert, with the cooperation of the American Museum of Natural History