Jhalani, S R <br/><br/>
Industrial economics and environmental protection/ 
S R Jhalani 
 - Jaipur:  Galaxy book company,  2020. 
 - 240p. 
<br/><br/><label>ISBN: </label>9789386411594 
<br/><br/><label>Dewey Class. No.: </label>354.9  / JHA/I