Farming with animal power.   

 - Rome :   Food and Agriculture Organisation of the United Nations,   1977. 
 - 57 p. :    ill. ;    21 cm. 
 - Better farming series ;   no. 14. .
<br/><br/><label>ISBN: </label>925100157X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ploughing.--------