Acock A M <br/><br/>
Progress and economic problems in farm machanizati 

 - Washington  Food and Agriculture Organization         1950 
 - vii, 88p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture Labour
<br/><br/><label>Dewey Class. No.: </label>X9(J):D6,8(J), J0/UN