Singh,B.P. <br/><br/>
Vyavsayik sangthan avem prabandha 

 - New Delhi  Kitab mahal  1996 
 - 1.1-18.6;A1-A14p. 
<br/><br/><label>ISBN: </label>81-7198-059-7 
<br/><br/><label>Dewey Class. No.: </label>658.1H  Sin.N6