Kaplan Sylvan J Ed. <br/><br/>
Ecology and the quality of life 

 - Illinois  C Thomas           1973 
 - x,296p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology
<br/><br/><label>Dewey Class. No.: </label>G:5, L3