Singal,S.P. <br/><br/>
Air Quality Monitoring and Control Srtategy / 
by S.P.  Singal 
 - New Delhi :  Narosa Publishing House pvt.Ltd,  2012. 
 - iv,298p 
<br/><br/><label>ISBN: </label>9788184871739 
<br/><br/><label>Dewey Class. No.: </label>629.1326  / SIN/A