Stanley, Steven M. Extinction / Steven M. Stanley. - New York : Scientific American Library : Distributed by W.H. Freeman, c1987. - xi, 242 p. : ill. (some col.) ; 25 cm. - Scientific American Library series ; no. 20 . Includes index. Bibliography: p. [219]-227. ISBN: 0716750147 Subjects--Topical Terms: Extinction (Biology) LC Class. No.: QE721.2.E97 / S73 1987 Dewey Class. No.: 575/.7