Cunningham, William P. <br/><br/>
Principles of environmental science :  inquiry and applications / 
William P. Cunningham [and] Mary Ann Cunningham. 
 - 4th ed. 
 - Boston :  McGraw-Hill Higher Education,  c2008. 
 - xxii, 410 p. :  col. ill. + maps. ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9780073050898 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences.