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010 _a55129
011 _a56101
035 _a60254
040 _cCHAP
082 _a630.717
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100 0 0 _aSepúlveda Silva, Sergio.
_9104489
245 1 4 _aThe effects of modern technology on labor for producing crops on small in two integrated rural development districts in Colombia
260 _aIthaca, N.Y. :
_bNew York State College of Agriculture and Life Sciences,
_c1979
300 _a61 p.
_b; gráfs.
490 0 _aCornell International Agriculture. Mimeograph
_v; 68
590 _aBATCH-UPD
_b10
_c20130110
_lUCH01
_h0331
590 _aBATCH-UPD
_b10
_c20130110
_lUCH01
_h2014
590 _aBATCH-UPD
_b10
_c20130410
_lUCH01
_h0004
590 _aBATCH-UPD
_b10
_c20130913
_lUCH01
_h2123
590 _aBATCH-UPD
_b10
_c20130914
_lUCH01
_h1049
590 _aCONVERSION
_b10
_c20130109
_lUCH01
_h1330
650 1 4 _aAgricultura
_xInnovaciones tecnológicas.
_91565
650 1 4 _aAgricultura
_xTrabajadores
_xColombia.
_91851
830 0 _aCornell international agriculture mimeograph
_v; 68
901 _aBK
942 _cLIBRO
949 _a630.717 S47
_bBC
_cLIBRO
_d33724000036315
_eLIBRO
_h47790
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999 _c55129
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