Ehrlich, Paul R. <br/><br/>
Population, resources, environment :  issues in human ecology / 
Paul R. Ehrlich and Anne H. Ehrlich. 
 - San Francisco :  W. H. Freeman,  c1970. 
 - xiv, 383 p. : 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0716706806 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.
<br/><br/><label>Dewey Class. No.: </label>304.2  / Po