Bibliography

Cossel, J. O., Jr., J. E. Twining, K. L. Di Stefano, A. O’Brien, A. S. Reich, and J. Sandoval-Alanis. 2019. Vocalizations of five species of frogs in the Craugastor podiciferus species group (Anura: Craugastoridae) from Costa Rica. Herpetological Conservation and Biology 14: 235–249.