Vishnu Bhawan <br/><br/>
Lok prashasan ke siddhant 

 - 4th ed. 
 - New Delhi  S Chand  1994 
 - 640 p. 
<br/><br/><label>ISBN: </label> RS0.85 
<br/><br/><label>Dewey Class. No.: </label>350 V823L