Communications policy for national development : a comparative perspective / edited by Majid Teheranian, Farhad Hakimzadeh, Marcello L. Vidale. - Teheranian, Majid; Hakimzadeh, Farhad; Vidale, Marcello L (Routledge and Kegan Paul (for) the Iran Communications and Development Institute and the International Institute of Communications, 1977)