Animal Draught: The Economics of Revival 

 - Agrarian Research and Training Institute  Colombo  1981 
 - 62p. 
<br/><br/><label>Nat. Bib. No.: </label>5005 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Universal Decimal Class. No.: </label>631.15  / RYA