Fieldson, R. S.  <br/><br/>
Farm labour input in the dry zone 

 - Agrarian Research and Training Institute  Colombo  1981 
 - 110p.  fig., table, chart 
<br/><br/><label>Nat. Bib. No.: </label>5032 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Universal Decimal Class. No.: </label>631.15  / FIE