Singer, Fred S, Ed. <br/><br/>
Is There An Optimum Level Of Population? 

 - New York:  Mcgraw - Hill Book Co.,   1971 
 - 426 p.  HB 
<br/><br/> General 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Is There An Optimum Level Of Population 
<br/><br/><label>Universal Decimal Class. No.: </label>301.32  / SIN-O