Easton, David. <br/><br/>
The Political System: An Inquiry into the State of Political Science /  

 - Second Indian Ed. /  
 - Calcutta-1 :   Scientific Book Agency. 
 - p.377,x :  
<br/><br/><label>ISBN: </label>0-394-31536-7 
<br/><br/><label>Dewey Class. No.: </label>W:g  / J3,L1;1