Extinct and vanishing animals : a biology of extinction and survival / Vinzenz Ziswiler, Fred L Bunnell and Pille Bunnell Bedrohte und ausgerottete Tiere. English Ziswiler, Vinzenz. Bunnell, Fred, ed. and tr. Bunnell, Pille, ed. and tr. Extinct animals. Wildlife conservation. Rare animals. QL88 .Z513 591.042 23 ZIE Translation of Bedrohte und ausgerottete Tiere. Includes bibliographical references and index. New York : Springer-Verlag, c1967. c1967. 1967 Text x, 133 p. : eng engund Heidelberg science library ; v. 2