Ehrlich, Paul R. Ehrlich, Anne H. <br/><br/>
Population, resources, environment :   issues in human ecology / 
Ehrlich, Paul R. 
 - 2nd. ed. 
 - San Francisco:  Freeman,  1972 
 - xiv, 509p.;  26 cm 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0-7167-0680-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Demography<br/>Sociology<br/>Population<br/>Environment<br/>Human ecology
<br/><br/><label>Dewey Class. No.: </label>312  / EHR