Callan, Scott J; Thomas, Janet M <br/><br/>
Environmental economics and management: theory, policy and applications/ 2nd ed 

 - 2 
 - Fortworth  Dryden Press  2000 
<br/><br/><label>ISBN: </label>0-03-025631-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Economics