The impact of communication on rural development; an investigation in Costa Rica and India
Roy, Prodipto,1925-
Waisanen, Frederick B.(Frederick Brynolf),1923-joint author.
Rogers, Everett M.joint author.
Unesco.
Paris,  UNESCO, National Institute of Community Development, Hyderabad, India 
[1969]
"Report of a research project initiated by UNESCO..."
Rural development
Rural development
Communication