Cunningham, William P. <br/><br/>
Environmental science :  a global concern / 
William P. Cunningham ; Barbara Woodworth Saigo. 
 - 2nd ed. 
 - Dubuque, IA :  Wm. C. Brown Publishers,  c1992. 
 - xvii, 622 p. :  ill. (some col.), col. maps ;  29 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0697102726 (case) 069714478X (paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences.