00594cam a2200205 4500 0716706806 DLC 301 FRE 1970 A089 Or. Ehrlich, Paul R. Population resources environment; issues in human ecology San Francisco, W. H. Freeman [1970] 383 p. illus. 26 cm. A Series of books in biology Third ed. published in 1977 under title: Ecoscience. Population. Pollution. Human ecology. Ehrlich, Anne H., EK 16203 16203 0 0 0 301_000000000000000_FRE_1970_A089_OR 0 70218 LBA LBA A089 2018-01-23 301 FRE 1970 A089 Or. A24016 2018-01-23 2018-01-23 EK