Cunningham, William P.  <br/><br/>
Principles of environmental science:   inquiry & applications/   
William P. Cunningham and Mary Ann Cunningham 
 - Fifth edition 
 - Boston:   McGraw-Hill Higher Education,    c2010. 
 - xxiii, 408 pages :    illustrations ;  26 cm. 
<br/><br/>Includes appendices, bibliographical references, glossary and index. 
<br/><br/><label>ISBN: </label>9780071078634 (pbk.)