Cunningham, William P <br/><br/>
Principles of environmental science:  inquiry and applications 
William P. Cunningham 
 - New Delhi  McGraw-Hill Education  2007 
 - xxii;410 p  Soft bind 
<br/><br/><label>ISBN: </label>9780070647725 
<br/><br/><label>Dewey Class. No.: </label>363.7  / CUN-P