Wadhwa, Yashpal <br/><br/>
Air pollution: causes and control 
by Yashpal Wadhwa 
 - New Delhi.  Cyber Tech Publications  c2009 
 - [viii],248p.; 19cm. 
<br/><br/><label>ISBN: </label>9788178844237 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air pollution <br/>Air pollution--Control
<br/><br/><label>Dewey Class. No.: </label>333.92  / WAD