How much is an ecosystem worth?  assessing the economic value of conservation. - 

 - Washington, D.C.   The World Bank  2005 
<br/><br/><label>ISBN: </label>978-0-8213-6378-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic value- environment
<br/><br/><label>Dewey Class. No.: </label>333.7 HOW