an analysis of the pre-Mahaweli situation in H4 and H5 areas in Kala-Oya basin / 

 -  Agrarian research and training institute  1979 
 - x, 125 p. 
 - Research study no.33 .
<br/><br/><label>ISBN: </label>69168 
<br/><br/><label>Dewey Class. No.: </label>338.9  / SRI