Cunningham, P. William,  Cunningham, A. Mary. <br/><br/>
Principles of Environmental Science: Inquiry and Application. 
Cunningham, P. William,  Cunningham, A. Mary. 
 - 6th ed. 
 - New York:  McGraw hill,  2011. 
 - xxiv,389 p.;  ill, Table contents, indexes,  
<br/><br/> Includes index, table of contents, figs,  
<br/><br/><label>ISBN: </label>9780071221863 
<br/><br/><label>Subjects--Personal Names: </label><br/>Environmetal.
<br/><br/><label>LC Class. No.: </label>GE107.C37 2011