TY - BOOK AU - Ehrlich, Paul R. AU - Ehrlich,Anne H. TI - Population resources environment: issues in human ecology T2 - A Series of books in biology SN - 0716706806 PY - 1970/// CY - San Francisco PB - W. H. Freeman KW - Population KW - Pollution KW - Human ecology N1 - Third ed. published in 1977 under title: Ecoscience; Bibliography: p. [360]-363 ER -