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. - xiv, 383 p. :
Includes bibliographical references and index.
0716706806
Population.
304.2 / Po
Population, resources, environment : issues in human ecology / Paul R. Ehrlich and Anne H. Ehrlich. - San Francisco : W. H. Freeman, c1970. - xiv, 383 p. :
Includes bibliographical references and index.
0716706806
Population.
304.2 / Po