Cunningham, William P. <br/><br/>
Principles of environmental science :  inquiry & applications / 
William P. Cunningham, Mary Ann Cunningham. 
 - Ninth edition 
 - xxvii, 402 pages :  illustrations;  28 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9781260566024  RM109.18 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences.