International directory of agricultural engineerin 

 - Rome  Food and Agriculture Organization         1973 
 - v, 537p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>J:(D).1e4n,N7, L3/UN