Air pollution's toll on forests and crops/ 
edited by James J. Mackenzie and Mohamed T. El-Ashry 
 - New Haven:  Yale University Press,  1989 
 - ix, 376 p.;  24 cm. 
 - A world Resources Institute Book .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0300045697  $ 46.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trees--Effect of air pollution on--United States<br/>Trees--Effect of air pollution on--Europe<br/>Crops--Effect of air pollution on--Unites States<br/>Crops--Effect of air pollution on--United State
<br/><br/><label>Dewey Class. No.: </label>614.71