Valuing nature? :  ethics, economics and the environment / 
edited and with an introduction by John Foster. 
 - London :  Routledge,  1997. 
 - 273 pages ;  23 cm. 
<br/><br/><label>ISBN: </label>0415129788  RM345.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental policy--Cost effectiveness.<br/>Environmental economics.<br/>Environmental ethics.