Gay, Kathlyn. <br/><br/>
Air pollution / 
by Kathlyn Gay. 
 - New York :  Franklin Watts,  1991. 
 - 144 p. :  ill. 
 - An Impact book .
<br/><br/>Includes bibliographical references and index. 
<br/><br/> Examines the growing problem of air pollution, its effect on the ozone and stratosphere and what we can do to improve air quality. 
<br/><br/> 7-12. 
<br/><br/><label>ISBN: </label>0531130029 
<br/><br/><label>LCCN: </label>91017780 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air pollution.<br/>Pollution.
<br/><br/><label>Dewey Class. No.: </label>363.73