Power to produce. 

 - Washington,  U.S. Govt. Print. Off.  [1960] 
 - xiii, 480 p.  illus., plates.  24 cm. 
 - Its Yearbook of agriculture,  1960 .
 - Yearbook of agriculture (Washington, D.C. : 1926) ;  1960. .
<br/><br/> Edited by Alfred Stefferud. 
<br/><br/><label>LCCN: </label>agr60000362  
<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