Webster, B. R. (1975). Access: Technology and access to communications media. Unesco.
Cita Chicago Style (17a ed.)Webster, Bernard R. Access: Technology and Access to Communications Media. Paris: Unesco, 1975.
Cita MLA (9a ed.)Webster, Bernard R. Access: Technology and Access to Communications Media. Unesco, 1975.
Precaución: Estas citas no son 100% exactas.