An annotated check list of the amphibians and reptiles of Colorado.
Boulder: University of Colorado Press, 1959. Octavo, wrappers, More
Boulder: University of Colorado Press, 1959. Octavo, wrappers, More
Boulder: University of Colorado Press, 1965. Octavo, wrappers, maps. University of Colorado Studies, Series in Biology, number 15. More
Malabar: Krieger Publishing Company, 2005. Quarto, publisher's boards, This is a comprehensive checklist of all known snakes found in the New World, as well as a lexicon that lists all the common names, in several languages, of these snakes. The checklist gives information on snakes in all of the Americas..... More