Wark Kenneth <br/><br/>
Air pollution  Its origin and control 

 - 2nd ed. 
 -  Harper Collins  1981 
<br/><br/> include index 
<br/><br/><label>ISBN: </label>9780700225347 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution
<br/><br/><label>Dewey Class. No.: </label>D8148 L6W,M1