Weld, W. A. <br/><br/>
Terrace construction  : with small equipment in the south 

 - Washington :  USDA. Soil Conservation Service,  1940 
 - 11 p.  : ilus. 
<br/><br/><label>LCCN: </label>53415 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Maquinaria agrícola.<br/>Terrazas.