00470nam a22001452  4500001001100000005001700011008004100028040001500069050001900084100003400103245009900137260003600236300001000272650004200282000000471020151217151939.0070528s        xx            000 0 eng d  aKABUcKABU 0aS494.5b.I5T751 aTrigo, Eduardo J.@000015542910aAgriculture, technological change, and the environment in latin America :ba 2020 perspective.  aWashington, DC :bIFPRI,c1995.  a19 p. 0aAgricultural innovations.@0000155430