Gupta  .S.P. And  Gupta.Uma. <br/><br/>
Sankhiki ke Sidhant 

 - New Delhi  Sultan and Sons  2007 
 - 260P.-1-42,1-X1V 
<br/><br/><label>ISBN: </label>81-8054-523-7 
<br/><br/><label>Dewey Class. No.: </label>519.5H                       G