Population resources environment :
Ehrlich, Paul R.
Population resources environment : issues in human ecology / Paul R. Ehrlich and Anne H. Ehrlich. - 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.
Bibliography: p. [360]-363.
0716706806
75103067
Population.
Pollution.
Human ecology.
HB871 / .E35
304.6 / EHP 1970
Population resources environment : issues in human ecology / Paul R. Ehrlich and Anne H. Ehrlich. - 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.
Bibliography: p. [360]-363.
0716706806
75103067
Population.
Pollution.
Human ecology.
HB871 / .E35
304.6 / EHP 1970