Air pollution:   Problems and perspectives 

 - Bhopal:   EPCO,   1983 
 - 397p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution 
<br/><br/><label>Subjects--Index Terms: </label>Air 
<br/><br/><label>Universal Decimal Class. No.: </label>502.55(203)(082.2)  / M3