Agrarian Research and Training Institute Izumi, k Ranatunga, A S <br/><br/>
Cost of Production of Paddy Maha 1972 -73  Study Based on Farm Record Books Maintained in Five Selected Districts 

 - Colombo  ARTS  1974 
 - x,35p. 
 - Agrarian Research and Training Institute, Research Study No.-12 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Crop Production<br/>Cultivation<br/>Farms<br/>Paddy<br/>Rice