Change and Continuity in Village Irrigation System :  A Case Study in Moneragala District Sri Lanka /  English. 
Abeyratne, S., Perera, J. 
 - Colombo :  Agrarian Research and Training institute,  1986. 
 - 153 p.:  ill. maps, tables ;  30cm. 
<br/><br/><label>Dewey Class. No.: </label>X631.67  / AGR