Ehrlich, Paul R. . <br/><br/>
Human Ecology: Problems and Solutions /  

 - San Francisco :   W.H. Freeman and Company ,   1969 
 - 300p :  
<br/><br/><label>ISBN: </label>0-7167-0595-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Life Science <Ecology>
<br/><br/><label>Dewey Class. No.: </label>G:5  / L3E