Valuing nature? :  ethics, economics and the environment / 
edited and with introduction by John Foster. 
 - London :  Routledge,  1997. 
 - xi, 273  p. 
<br/><br/><label>ISBN: </label>0415148758 :  KES 3240 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental policy--Cost effectiveness.<br/>Environmental economics.<br/>Environmental ethics.