Sepúlveda Silva, Sergio. <br/><br/>
The effects of modern technology on labor for producing crops on small in two integrated rural development districts in Colombia 

 - Ithaca, N.Y. :  New York State College of Agriculture and Life Sciences,  1979 
 - 61 p.  ; gráfs. 
 - Cornell International Agriculture. Mimeograph  ; 68 .
 - Cornell international agriculture mimeograph  ; 68 .
<br/><br/><label>LCCN: </label>55129 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Innovaciones tecnológicas.<br/>Agricultura--Trabajadores--Colombia.
<br/><br/><label>Dewey Class. No.: </label>630.717  / S47