Patanjali,Premchand <br/><br/>
Vyavasayik hindi 

 - Delhi  Vani prakashan  1997 
 - 148p. 
<br/><br/><label>ISBN: </label>81-7055-506-X 
<br/><br/><label>Dewey Class. No.: </label>4H8                   Pat. N7