Cunningham, William P. <br/><br/>
Principles of environmental science :  inquiry & applications / 
 Environmental science. 
William P. Cunningham, Mary Ann Cunningham. 
 - 6th ed. 
 - New York :  McGraw-Hill,  2011. 
 - 389 p., [33] p. :  ill. (col.), col. maps ;  28  cm. 
<br/><br/>Includes index. 
<br/><br/>
<br/><br/><label>ISBN: </label>9780073383248 (pbk.)  RM398.83 0073383244 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences--Textbooks.