Ehrlich, Paul R. <br/><br/>
Population resources environment :  issues in human ecology / 
[by] Paul R. Ehrlich [and] Anne H. Ehrlich. 
 - San Francisco :  W. H. Freeman & Company,  c1970. 
 - 383 pages :  illustrations ;  26 cm. 
 - Series of books in biology .
<br/><br/> Third ed. published in 1977 under title: Ecoscience. 
<br/><br/>Bibliography: p. [360]-363. 
<br/><br/><label>ISBN: </label>0716706806 
<br/><br/><label>LCCN: </label>75103067 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology.<br/>Pollution.<br/>Population.
<br/><br/><label>LC Class. No.: </label>HB871  / .E35 
<br/><br/><label>Dewey Class. No.: </label>301.3