Porwal, L. S. <br/><br/>
According :  a textbook for class XI / 
L. S. Porwal...[et..all] ; edited by L. S. Porwal and R. G. Saxena 
 - New Delhi :  NCERT ,  1989 
 - 173 p. ;  24 cm. 
<br/><br/><label>ISBN: </label> Rs. 21.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics--Study and teaching--India
<br/><br/><label>Dewey Class. No.: </label>657