katyal, . <br/><br/>
Environmental Pollution /  Textual Documents 
katyal & Satake. 
 - Sl :  Sn ,  1997. 
<br/><br/><label>Subjects--Index Terms: </label>G-Chemistry 
<br/><br/><label>Dewey Class. No.: </label>574.54  / KA 159 EN