Ryan, M. Abeyratne, F. Farrington, J. <br/><br/>
Animal draught  the economics of revival 

 - Agrarian Research Institute  Colombo  1981 
 - 62p. 
 - Animals Farms Sri Lanka 
 - Occasional Publications  23 .
<br/><br/><label>Nat. Bib. No.: </label>5446 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>636.293(548.7)RYA 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Universal Decimal Class. No.: </label>636.293(548.7)  1