International encyclopaedia of social science/ 
Shashi,S.S. 
 - 1st ed. 
 - New Delhi:  Anmol Publications Pvt. Ltd.,  2011. 
<br/><br/><label>ISBN: </label>8126130954 
<br/><br/><label>Dewey Class. No.: </label>300.03  / SHA/I