00605nam a22001697a 4500003000400000005001700004008004100021020001500062040000800077082001800085100002200103245008500125260004400210300001100254500002800265650014200293OSt20150926094654.0030206s2002    ck            000 0 spa d  a0813379253  cOSt04221a630bK477  aKesseba, Abbas M.00aTechnology systems for small farmers :cAbbas M. Kesseba, bIssues and options /  aNew York:     bWeatview Press, c1989.  a229 p.  aDonado por: Fernández042LEMBxAGRICULTURA Y ESTADO / AGRICULTURE AND CONDITION(STATE)xAGRICULTURA-INNOVACIÓN AGRÍCOLA / AGRICULTURE-AGRICULTURAL INNOVATION