Isolation mechanisms in toads of the Bufo debilis group in Arizona and western Mexico. American Museum novitates ; no. 2100

Bogert, Charles M. (Charles Mitchill), 1908-1992.2005-10-062005-10-061962http://hdl.handle.net/2246/341437 p. : ill., map ; 24 cm.Includes bibliographical references (p. 35-37).5927986 bytesapplication/pdfen-USQL1 .A436 no.2100, 1962Bufo debilis.Toads -- Southwestern States.Toads -- Mexico.Amphibians -- Southwestern States.Amphibians -- Mexico.Isolation mechanisms in toads of the Bufo debilis group in Arizona and western Mexico. American Museum novitates ; no. 2100text