How much is an ecosystem worth?: assessing the economic value of conservation 
by World Bank, U.S.A. 
 - Washington, D.C.  World Bank  2005 
 - 33p. 
<br/><br/><label>ISBN: </label>0821363786 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental policy --Economic aspects<br/>Environmental protection --Economic aspects
<br/><br/><label>Dewey Class. No.: </label>O91 In8