Roots of the farm problem :  changing technology, changing capital use, changing labor needs / 
Earl O. Heady ... [et al.]. 
 - 1st ed. 
 - Ames, IA, U.S.A. :  Iowa State University Center for Agricultural and Economic Development : the Iowa State University Press,  Iowa State University Center for Agricultural and Economic Development : the Iowa State University Press,  1965. 
<br/><br/> First published 1961. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>LCCN: </label>65019384 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture -- Economic aspects -- United States.--Agriculture -- Economic aspects -- United States.--Agriculture -- Economic aspects -- United States.
<br/><br/><label>LC Class. No.: </label>HD1761  / .H473 
<br/><br/><label>Dewey Class. No.: </label>338.10973