Katyal, Timmy  & Satake, M <br/><br/>
Environmental Pollution 

 - Anmol, New delhi  1989 
 - vii; 307 
<br/><br/><label>ISBN: </label>81-7041-123-8 
<br/><br/><label>Dewey Class. No.: </label>363.739 Kat/Sat