Cunningham, William P. <br/><br/>
Principles of Environmental Science :  inquiry and applications / 
William P. Cunningham, Mary Ann Cunningham. 
 - Boston :  McGraw Hill ,  2002. 
 - xv, 418 p.  ill. (some col.), maps ;  28cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0072452706  RM266.91 0072505044  RM267.57 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science.