Não informado. (1974). Communication and broadcasting. Marconi Communication Systems.
Style de citation Chicago (17e éd.)Não informado. Communication and Broadcasting. Chelmsford, Inglaterra: Marconi Communication Systems, 1974.
Style de citation MLA (8e éd.)Não informado. Communication and Broadcasting. Marconi Communication Systems, 1974.
Attention : ces citations peuvent ne pas être correctes à 100%.