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

 - San Francisco  W. H. Freeman and Company  1970 
 - 383 
<br/><br/><label>ISBN: </label>0716706806 
<br/><br/><label>Dewey Class. No.: </label>CIR 574.5 Eh8p 1970