Air pollution across boundaries 

 - New York  United Nations  1985 
 - xi,156p.  30cm. 
<br/><br/><label>ISBN: </label>9211163285 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air pollution
<br/><br/><label>LC Class. No.: </label>QTO Z6673.A5