DARA , S.S. <br/><br/>
A TEXT BOOK OF ENVIRONMENTAL CHEMISTRY AND POLLUTION CONTROL 

 - NEW DELHI  S.CHAND & COMPANY  2008 
 - 402:  22CM. 
<br/><br/><label>Subjects--Index Terms: </label>Environmental Science 
<br/><br/><label>Dewey Class. No.: </label>363.7 DAR