Aggerwal, Santosh <br/><br/>
Three Language Formula 

 - New Delhi  Gyan Publishing House  1991 
 - 326 
<br/><br/><label>ISBN: </label>81-212-0336-8 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>370:491.4