Ayodhya Singh <br/><br/>
Industrial chemistry 
Ayodhya Singh. 
 - New Delhi  Campus Books International  2002 
 - xx, 449p., 22cm. 
<br/><br/><label>ISBN: </label>81-87815-76-0. 
<br/><br/><label>Dewey Class. No.: </label>660 A97I