DE JONG, Ijsbrand H. <br/><br/>
Fair and unfair:   a study into Bethma system in two Sri Lankan village irrication systems / 
[by] Ijsbrand H.de Jong 
 - Colombo  International Irrigation Management Institute  1989 
 - v, 30 p. 
<br/><br/> Includes references. 
<br/><br/><label>Dewey Class. No.: </label>631.7  / DEJ