Ehrlich, Paul R. The machinery of nature / Paul R. Ehrlich. - New York : Simon and Schuster, c1986. - 320 p. : ill. ; 25 cm. Includes index. Bibliography: p. 299-301. ISBN: 0671492888 LCCN: 85024980 Subjects--Topical Terms: Ecology. LC Class. No.: QH541 / .E35 1986 Dewey Class. No.: 574.5