william cunningham <br/><br/>
Principles of environmental science 

 - 7th edition 
 - New York  McGraw- hill companies  2013 
 - xv: 399  27.5 cm 
<br/><br/><label>ISBN: </label>978007515300 
<br/><br/><label>LC Class. No.: </label>GE 105  / cun