Katyal, Timmy <br/><br/>
Environmental pollution 
Timmy Katyal, M. Satake; edited by Raj Kumar 
 - New Delhi  Anmol Pub.  1990 
 - 302 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution
<br/><br/><label>Dewey Class. No.: </label>363.73  / KAT N0