An Analysis of the Pre - Mahaweli Situation in H4 and H5 Areas in Kala - Oya Basin :  English. 

 - Colombo:  Agrarian Research and Training Institute,  1979. 
 - 125 p.:  30cm. 
<br/><br/><label>Dewey Class. No.: </label>X63:301.18  / SRI