Natural resource and environmental economics / 
Perman, Roger and Ma, Yue ...(et al.). 
 - 3th edition. 
 - Harlow :  Pearson Education Limited,  c2003 
 - xxv,699 pages :  ills.;  25cm.  Includes bibliographic references and indexes. 
<br/><br/><label>ISBN: </label>0 273 65559 0 
<br/><br/><label>Subjects--Personal Names: </label>--Environmental economics.
<br/><br/><label>Dewey Class. No.: </label>333.7 NAT