1955. An annotated checklist of the amphibians and reptiles of Korea. Bull. Philadelphia Herp. Soc., 1:17-23.
Bogert, C. M., and Oliver, J. A.
1945. A preliminary analysis of the herpetofauna of Sonora. Bull. Amer. Mus. Nat. Hist., 83:297-426, 8 pls., 13 figs., 2 maps, March 30.
Boulenger, G. A.
1882. Catalogue of the Batrachia Salientia s. Ecaudata in the collection of the British Museum. Taylor and Francis, London, xvi + 503 pp., 30 pls.
Chang, M. L. Y.
1932. Notes on a collection of reptiles from Szechuan. Contrib. Biol. Lab., Sci. Soc. China, Zool. Ser., 8:9-95, 28 figs., February.
Conant, R.
1951. The reptiles of Ohio. Second edition (with revisionary addenda). Amer. Midland Nat., Univ. Notre Dame Press, 284 pp., 27 pls.