Power to produce / 
[editor Alfred Stefferud]. 
 - Washington,  U.S. Govt. Print. Off.  [1960] 
 - xiii, 480 p.  ill., plates. 
 - Yearbook of agriculture ;  1960 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Farm mechanization--United States.<br/>Agricultural implements.<br/>Agricultural machinery.<br/>Power (Mechanics)
<br/><br/><label>LC Class. No.: </label>S21  / .A35 1960 
<br/><br/><label>National Agricultural Library Call No.: </label>1Ag84y 1960