Guide and reference to the Amphibians of Western North America (North of Mexico) and Hawaii.
Gainesville: University Press of Florida. 2009. Octavo, paperback, colour photographs, black and white photographs, maps. More than 500 species and subspecies of amphibians and reptiles can be found in the western United States. This set of three field guides offers a complete survey of the frogs, toads, salamanders, snakes, turtles..... More