Ehrlich, Paul R. <br/><br/>
Population resources environment;  issues in human ecology 

 - San Francisco,  W. H. Freeman  [1970] 
 - 383 p.  illus.  26 cm. 
 - A Series of books in biology .
<br/><br/> Third ed. published in 1977 under title: Ecoscience. 
<br/><br/><label>ISBN: </label>0716706806 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.<br/>Pollution.<br/>Human ecology.
<br/><br/><label>Dewey Class. No.: </label>301 SAN 1970 A077 Or.