Technology on the farm.  A special report 
by an Interbureau Committee and the Bureau of Agricultural Economics of the United States Department of Agriculture. 
 - [Washington]  U.S. Govt. Print. Off.,  1940. 
 - xiii, 224 p.  illus., diagrs.  26 cm. 
<br/><br/><label>LCCN: </label>agr40000500  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--United States.<br/>Agricultural engineering.<br/>Agriculture--Economic aspects--United States.
<br/><br/><label>LC Class. No.: </label>S441  / .A15 1940 
<br/><br/><label>Dewey Class. No.: </label>630.973