Principles of Environmental Science :  Inquiry and Applications / 
Cunningham William P. ; Mary Ann Cunningham  
 - Boston :  McGraww-hill,  2002. 
 - xxi,418 p,: 
<br/><br/><label>ISBN: </label>0072452706 
<br/><br/><label>LC Class. No.: </label>GE105  / .C86  2002