Urban air pollution in megacities of the world : earthwatch: global environment monitoring systems /  
UNEP. 
 - Oxford :   Blackwell Publishers ,   1992(R1993). 
 - viii,230p. ;   28cm. 
<br/><br/>NULL 
<br/><br/><label>ISBN: </label>063118404X  UKP 40.00 
<br/><br/><label>Subjects--Index Terms: </label>AIR-POLLUTION URBANIZATION-ENVIRONMENT ASPECTS 
<br/><br/><label>Dewey Class. No.: </label>363.7392091732  / UNE/U