Environmental science  a global concern 

 - 4th ed. 
 - Boston:  McGraw-Hill,  1997. 
 -  275p. 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>0697286738 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science
<br/><br/><label>Dewey Class. No.: </label>628  / ENV