EHRLICH, Paul R. Holdren, John P. Holm, Richard W. Man and the ecosphere: readings from scientific american / [by] Paul R.Ehrlich, John P.Holdren, Richard W.Holm - San Francisco W.H.Freeman and Co. 1971 - 307 p. Includes bibliogrphy and index. ISBN: 716709422 Subjects--Topical Terms: Environment-Protection Dewey Class. No.: 333.7 / EHR