The Systematics of the Frogs of the Hyla Rubra Group in Middle AmericaVolume 18, No. 6, pp. 505-545, 7 figs., 4 pls. December 2, 1969Reading editionChapter navigation2 reading sectionsGo to chapterChoose a chapter…Volume 18, No. 6, pp. 505-545, 7 figs., 4 pls. December 2, 1969JUAN R. LEÓNBeginning of this editionNext chapter →JUAN R. LEÓNAll chapters and sections (2)Volume 18, No. 6, pp. 505-545, 7 figs., 4 pls. December 2, 1969JUAN R. LEÓNThe Systematics of the Frogs of the Hyla rubra Group in Middle AmericaBYJUAN R. LEÓN →