00621nam a22002057a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093100002300102245008700125260004700212300001900259490002800278650004600306650003500352830002800387CHAP20220329140148.0971013s1982            r     00010     d  a47900  a48872  a53019  cCHAP00aRhoades, Robert E.  aFarmer-back-to-farmerb: a model for generating acceptable agricultural technology  aLima :bInternational Potato Center,c1982  a15 p.b: ilus.  aWorking paperv; 1982-114aAgriculturaxInnovaciones tecnológicas.14aComunicación en agricultura.0 aWorking paperv; 1982-1