Ehrlich, Paul R. <br/><br/>
Population resources environment :  issues in human ecology/ 
Paul R. Ehrlich [and] Anne H. Ehrlich. 
 - San Francisco :  W. H. Freeman,  1970 
 - 383 p. :  ill.   26 cm. 
<br/><br/>Bibliography: p. [360]-363. 
<br/><br/><label>ISBN: </label>0716706806; 9780716706809 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.;Pollution.;Human ecology.
<br/><br/><label>Universal Decimal Class. No.: </label>301.3