Elsom, Derek, <br/><br/>
Smog alert  managing urban air quality 
Derek Elsom. 
 - London  Earthscan Pub.  1996. 
 - xiii, 226 pages ;    24 cm. 
<br/><br/><label>ISBN: </label>1853831921  RM138.24 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Smog<br/>Air--Pollution