Cochran, Doris M. 1898- Living amphibians of the world / by Doris M. Cochran ; illustrated by Robert S. Simmons . . .[et al.] - London : Hamish Hamilton, 1961 - 199 p. : ill. ; 29 cm. - The World of nature series . Bibliography : p. 195 p ISBN: PND 63.00 Subjects--Topical Terms: Amphibians Dewey Class. No.: 597.8