PURKAYASTHA, GAUTAM. <br/><br/>
ENVIRONMENTAL ECONOMICS 

 - NEW DELHI:  KALYANI PUBLISHERS,  2006. 
 - 220:  21CM. 
<br/><br/><label>Subjects--Index Terms: </label>Indian Industry 
<br/><br/><label>Dewey Class. No.: </label>333.7 PUR