Roy, P., Rogers, E. M., & Waismann, F. (1969). The impact of communication on rural development: An investigation in Costa Rica and India. Unesco.
Cita Chicago Style (17a ed.)Roy, Prodipto, Everett M. Rogers, y Friedrich Waismann. The Impact of Communication on Rural Development: An Investigation in Costa Rica and India. Paris: Unesco, 1969.
Cita MLA (9a ed.)Roy, Prodipto, et al. The Impact of Communication on Rural Development: An Investigation in Costa Rica and India. Unesco, 1969.
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