Rogers, Everett M. Diffusion of innovations in Brazil, Nigeria and India - East Lansing : Michigan State University. Department of Communication, 1970 - Pag. varía - Diffusion of innovations research report ; 24 . - Diffusion of innovations research report ; 24 . LCCN: 51274 Subjects--Topical Terms: Agricultura--Innovaciones tecnológicas.Cambio social. Dewey Class. No.: 630.717 / R6