Ehrlich, Paul R. Extinction : the causes and consequences of the disappearance of species / by Paul and Anne Ehrlich. - New York : Random House, 1981. - xiv, 305 p. ; 25 cm. ISBN: 0394513126 Subjects--Topical Terms: Nature conservation; Ecology; Endangered species; Extinct animals. Dewey Class. No.: 333.95 PAU