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Rivero, J.A. 1978 Los anfibios y reptiles de Puerto Rico (The amphibians and reptiles of Puerto Rico). 1st ed. Universidad de Puerto Rico. 375 pp. (2nd rev. ed., see below)

Rivero, J.A. 1998 The Amphibians and Reptiles of Puerto Rico / Los Anfíbios y Reptiles de Puerto Rico. 2nd rev. ed. University of Puerto Rico Press, San Juan. 510 pp.