Bibliography

Opazo, D., N. A. Velásquez, A. Veloso, and M. Penna. 2009. Frequency-Modulated Vocalizations of Eupsophus queulensis (Anura: Cycloramphidae). Journal of Herpetology 43: 657-664 (https://doi.org/10.1670/08-189.1).