"Wadhwa, Yash Pal" <br/><br/>
Air pollution : causes and control 

 - New Delhi  Cyber Tech Pub.  2009 
 - 248 p. 
<br/><br/><label>ISBN: </label>9788178844237 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution - Air
<br/><br/><label>Dewey Class. No.: </label>363.7392 WAD