Cunningham, William P. <br/><br/>
Principles of environmental science :  inquiry and applications / 
William P. Cunningham, Mary Ann Cunningham. 
 - 3rd ed. 
 - New York :  McGraw-Hill,  2006. 
 - xviii, 428 p. :  ill. (some col.), maps ;  28 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0073019267 (pkg.)  RM307.77 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences--Textbooks.