Cunningham, William P. <br/><br/>
Environmental science  a global concern 
William P. Cunningham, Barbara Woodworth Saigo. 
 - 4th ed. 
 - Dubuque, IA  Wm. C. Brown Publishers  1997 
 - xxi, 634 p.  28 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0697370836 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Môi trường