Punmia B. C. <br/><br/>
Environmental engineering 2 waste water engineering ( Including air pollution ) 

 - New Delhi  Laxmi Publications  2008 
 - 660p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CIVIL
<br/><br/><label>Dewey Class. No.: </label>628.3