Urban air pollution / 
Global Environment Monitoring System. 
 - Nairobi :  United nations environment health,  1991. 
 - 36 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>9241560827 (pbk.) :  11.00F 
<br/><br/><label>LCCN: </label>85183672 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Global Environmental Monitoring System.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air--Pollution--Measurement.<br/>Urban climatology.
<br/><br/><label>LC Class. No.: </label>TD890  / .U73