Duellman, W. E. 1., & Duellman, W. E. 1. (1963). Amphibians and reptiles of the rainforest of Southern El Petén, Guatemala. Lawrence: University of Kansas.
Chicago Style CitationDuellman, William Edward 1930-, and William Edward 1930- Duellman. Amphibians and Reptiles of the Rainforest of Southern El Petén, Guatemala. Lawrence: University of Kansas, 1963.
MLA CitationDuellman, William Edward 1930-, and William Edward 1930- Duellman. Amphibians and Reptiles of the Rainforest of Southern El Petén, Guatemala. Lawrence: University of Kansas, 1963.
Warning: These citations may not always be 100% accurate.