Frazer, John Francis Deryk. Amphibians / [by] J.F.D. Frazer. - London : Wykeham Publications, 1973. - The Wykeham science series ; 25 . Includes index. Bibliography: p. 114-115. ISBN: 0851093302 LCCN: 74152866 Subjects--Topical Terms: Amphibians. LC Class. No.: QL667 / .F7 Dewey Class. No.: 597/.6