Agrarian Research and Training Institute Izumi, K Ranatunge, A S <br/><br/>
Cost of Production of Paddy Yala, 1972  Study based on Record Keeping Farmers in Five Selected Districts 

 - Colombo  ARTS  1973 
 - ix,25p. 
 - Agrarian Research and Training Institute, Research Study Series 1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Cost of Production<br/>Crop Production<br/>Paddy<br/>Sri Lanka