Vastva, Harinarayan Sri <br/><br/>
Vayu pradushan 
by Harinarayan Sri Vastva 
 - New Delhi  Rajkamal Prakashan  1992 
 - 166p. 
<br/><br/><label>ISBN: </label>81 7178 273 6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air pollution