Ithaca, N.Y. : Library of Natural Sounds, Cornell Laboratory of Ornithology ; [S.l.] : USDA Forest Service, c1995.
Sound recording — 1 sound disc (60 min.) : digital ; 4 3/4 in. + 1 booklet (27 p. : ill. ; 12 cm.)
An audio field guide which presents the voices of 25 species of frogs and toads that occur in the Pacific Coast states. Accompanied by a booklet which includes descriptions of the calls, breeding seasons and habitats, and information on learning and identifying calls.