Valuing environment and natural resources/ 
Willis,  Kenneth G.[ed.] 
 - 1st.ed. 
 - Cheltenham:  Edward Elgar,  2012. 
 - 723 
<br/><br/><label>ISBN: </label>9780857930231 
<br/><br/><label>Dewey Class. No.: </label>333.7  / WIC/V