Ehrlich, Paul R. Ehrlich, Anne H. Extinction : the causes and consequences of the disappearance of species Paul and Anne Ehrlich. - 1st ed. - Random House New York 1981 c1981 - xiv, 305 p. ;25 cm. Includes bibliographical references and index. ISBN: 0394513126 Subjects--Topical Terms: Nature conservation.Ecology.Endangered species.Extinct animals.--QH LC Class. No.: QH75.E36