Lynch, 1979 : Leptodactylid frogs of the genus Eleutherodactylus from the Andes of southern Ecuador. Miscellaneous Publication, Museum of Natural History, University of Kansas, no 66, p. 1-62 (texte intégral).
↑(en) Juan C. Sánchez-Nivicela, Diana Székely, Luis A. Salagaje M et Nicolás Astudillo-Abad, « One hundred years of solitude: The rediscovery of Pristimantis ruidus (Anura, Strabomantidae) in the southern Andes, Ecuador and its phylogenetic relationships », Zoosystematics and Evolution, vol. 100, no 3, , p. 1107–1120 (ISSN1860-0743, DOI10.3897/zse.100.119662, lire en ligne, consulté le )
↑Lynch, 1979 : Leptodactylid frogs of the genus Eleutherodactylus from the Andes of southern Ecuador. Miscellaneous Publication, Museum of Natural History, University of Kansas, no 66, p. 1-62 (texte intégral).