Katyal, Timmy <br/><br/>
Environmental pollution / 
Timmy Katyal, M. Satake ; edited by Raj Kumar 
 - Delhi :  Anmol Publications,  1989 
 - 302 p. ;  22 cm. 
<br/><br/><label>ISBN: </label>8170411238 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution--India