Cummings, Ronald G. <br/><br/>
New evaluation procedures for a new generation of water-related proj ects / 
Ronald Cummings, Ariel Dinar, Douglas Olson. 
 - Washington, D.C. :  The World Bank,  1996. 
 - ix, 48 p. ;  27 cm. 
 - World Bank technical papers ;  no.349 .
<br/><br/><label>ISBN: </label>0821338293 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water resources development--Cost effectiveness--Mathematical mo dels.<br/>Water resources development--Cost effectiveness--Mexico--Mathe matical models.