Ziswiler, Vinzenz. Extinct and vanishing animals; a biology of extinction and survival. - Rev. English ed. by Fred and Pille Bunnell. Rev. English ed. by Fred and Pille Bunnell. - New York, Springer-Verlag, 1967. - Heidelberg science library ; v. 2 . Translation of Bedrohte und ausgerottete Tiere. Bibliography: p. 128. LCCN: 67025112 //r902 Subjects--Topical Terms: Extinct animals.Wildlife conservation.Rare animals. LC Class. No.: QL88 / .Z513 Dewey Class. No.: 591