Acid precipitation :  The North American Challenge 

 - Ankeny, Iowa :  The Society,  [1983?] 
 - [c.a. 150] p.  gráfs. 
<br/><br/> 29-98 
<br/><br/><label>LCCN: </label>68461 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Acidez.<br/>Lluvia.
<br/><br/><label>Dewey Class. No.: </label>551.573  / S6