Cunningham, William P. <br/><br/>
Principles of environmental science :  inquiry & applications / 
William P. Cunningham, Mary Ann Cunningham. 
 - 7th ed. 
 - New York, NY :  McGraw-Hill,  c2013. 
 - xxiv, 399, 4, 10, 2, 16 p. :   ill. (chiefly col.), col. maps ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9780073532516 
<br/><br/><label>LC Class. No.: </label>GE 105  / .C865 2013