Cunningham, William P. <br/><br/>
Environmental science :  a global concern / 
William P. Cunningham, Mary Ann Cunningham 
 - 12th ed. 
 - New York :  McGraw-Hill Companies, Inc.,  2012 
 - xxiii, 613 p. :  ill. (some col.), col. maps ;  30 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9780073383255 0073383252 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences--Textbooks