00683nam a22002177a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001600102100002300118245005800141260008200199300001700281490005100298650004600349650001900395830005100414CHAP20220329140404.0971013s1970            r     00010     d  a51274  a52246  a56396  cCHAP  a630.717bR600aRogers, Everett M.  aDiffusion of innovations in Brazil, Nigeria and India  aEast Lansing :bMichigan State University. Department of Communication,c1970  aPag. varía  aDiffusion of innovations research reportv; 2414aAgriculturaxInnovaciones tecnológicas.14aCambio social.0 aDiffusion of innovations research reportv; 24