NCERT Pub. <br/><br/>
Social and political life: Text book ofsocial science - 6 

 - 1st 
 - New Delhi  NCERT Pub.  2006 
 - 85 
<br/><br/><label>ISBN: </label> 30 
<br/><br/><label>Dewey Class. No.: </label>300/NAT