Environmental and Natural Resource Economics/ 
Tietenberg,Tom 
 - 7th edition. 
 - Boston.:  Pearson/Addison Wesley,  c2006. 
 - xxxi,655 p.:  ill.;  23 cm. 
<br/><br/><label>ISBN: </label>0321305043 
<br/><br/><label>LC Class. No.: </label>HC79  / .T53 2006