Arms, Karen <br/><br/>
Environmental science 
/by Karen  Arms 
 - Philadelphia  Saunders College Publishing  1990 
 - xix, 468p.  
<br/><br/><label>ISBN: </label>0-03-007178-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences--Human ecology
<br/><br/><label>Dewey Class. No.: </label>574.52  / ARM/E