Chhatwal, G R  <br/><br/>
Encyclopaedia of environmental air pollution /  
by G R Chhatwal 
 - New Delhi :  Anmol Pub.,  1997 
 - 671-1022 p. :  ill.   24 cm. 
<br/><br/>Includes Index. 
<br/><br/><label>ISBN: </label>8174884386 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air Pollution;Environment
<br/><br/><label>Universal Decimal Class. No.: </label>363.739203