Tiwari, purushotham <br/><br/>
Library classification 

 - New Delhi  A.P.H Publishing corporation  2009 
 - 2-272p,  22cm,  HB 
<br/><br/><label>ISBN: </label>9788131305119 
<br/><br/><label>Dewey Class. No.: </label>025.43  / TIW