The Economics of water quality 
edited by K. William Easter and Naomi Zeitouni 
 - Aldershot (England)  Ashgate Publishing Limited  2006 
 - 592 p.  25 cm 
 - International library of environmental economics and policy .
 - International library of environmental economics and policy .
<br/><br/><label>ISBN: </label>0754623718 
<br/><br/><label>Subjects--Index Terms: </label>Situacion economica Calidad del agua Abastecimiento de agua