Dalrymple, Dana G. <br/><br/>
Technological change in agriculture :  effects and implications for the developing nations 
/by Dana G. Dalrymple 
 - Washington, D.C. :  International Development. U.S. Foreign Agricultural Service  1969 
 - v, 81 p. :  gráfs. 
<br/><br/><label>LCCN: </label>98374 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Innovaciones tecnológicas.<br/>Industrias agrícolas--Innovaciones tecnológicas.
<br/><br/><label>Dewey Class. No.: </label>630.2  / D16