Perkins, Henry C. <br/><br/>
Air pollution / 
by Henry C. Perkins 
 - New York :  McGraw-Hill,  1974 
 - xv,407 p. :  ill. ;  24 cm. 
<br/><br/>Bibl. - Index 
<br/><br/><label>ISBN: </label>0070493022 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air--Pollution