↑ 3.03.1Frost, Darrel R. (2009) , database. Amphibian Species of the World: an Online Reference v5.3
↑ 4.04.1 (2004) , database, Amphibian Species of the World: an Online Reference
↑Banks, R. C., R. W. McDiarmid, and A. L. Gardner (1987) Checklist of Vertebrates of the United States, the U.S. Territories, and Canada, Resource Publication, no. 166
↑ 6.06.1 (2001) , website, 2000 IUCN Red List of Threatened Species
↑ 7.07.1 (2001) , website, U. S. Fish and Wildlife Service Endangered Species Program
↑Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes (2004) , Checklist of Vertebrates of the United States, the U.S. Territories, and Canada, draft (2004)
↑Crother, Brian I., Jeff Boundy, Frank T. Burbrink, et al. / Moriarty, John J., ed. (2008) Scientific and Standard English Names of Amphibians and Reptiles of North America North of Mexico, With Comments Regarding Confidence in Our Understanding, Sixth Ed., Herpetological Circular No. 37
↑Crother, Brian I., Jeff Boundy, Jonathan A. Campbell, Kevin de Quieroz, Darrel Frost, et al. (2003) Scientific and Standard English Names of Amphibians and Reptiles of North America North of Mexico: Update, Herpetological Review, vol. 34, no. 3
↑ 11.011.1Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)
↑ITIS: The Integrated Taxonomic Information System. Orrell T. (custodian), 26 Abril 2011