Hopfen , H.J.  <br/><br/>
Small farm implements / 
by H.J. Hopfen and E. Biesalski. 
 - Rome :   Food and Agriculture Organization of the United Nations,   1978, ©1953. 
 - vii, 79 p.:  ill.;  23 cm. 
 - 	FAO agriculture series,   no. 5 .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Agricultural implements. 
<br/><br/><label>Dewey Class. No.: </label>630  / HOS 1978