Tripathi, A. K.  <br/><br/>
Air pollution / 
A. K. Tripathi. 
 - Delhi :  S.B. Nangia,  2012. 
 - 302 p. ;  23 cm. 
<br/><br/>300   300  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air--Pollution.<br/>Environmental Science.
<br/><br/><label>Dewey Class. No.: </label>363.7392 / T73a