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, c1970 - 383 p. : illus. ; 26 cm. - A Series of books in biology .
Includes Bibliography & index.
0716706806
75103067
Population.
Pollution.
Human ecology.
301.3
Population resources environment : issues in human ecology / Paul R. Ehrlich and Anne H. Ehrlich. - San Francisco, : W. H. Freeman, c1970 - 383 p. : illus. ; 26 cm. - A Series of books in biology .
Includes Bibliography & index.
0716706806
75103067
Population.
Pollution.
Human ecology.
301.3