Cunningham William P. <br/><br/>
Environmental science :  A global concern / 
William P. Cunningham, Barbara Woodworth Saigo. 
 - 4-th ed. 
 - Bogotá ;  Caracas :  Wm.C. Brown Publishers,  1997. 
 - xxi, 634 p. :  ill. ;  27 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0697286711 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science<br/>Society and environment