Wadhwa, Yashpal <br/><br/>
Air pollution :  causes and control / 
Yashpal Wadhwa 
 - New Delhi :  Cyber Tech Publications,  2009 
 - 248 p. ;  22 cm. 
<br/><br/>Includes bibliographical references (p. [243]-244) and index 
<br/><br/><label>ISBN: </label>9788178844237 (hbk.) :  RM132.91 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air--Pollution<br/>Air quality management