Não informado. (1984). Communications Systems Worldwide. Morgan Grampian.
Style de citation Chicago (17e éd.)Não informado. Communications Systems Worldwide. London: Morgan Grampian, 1984.
Style de citation MLA (8e éd.)Não informado. Communications Systems Worldwide. Morgan Grampian, 1984.
Attention : ces citations peuvent ne pas être correctes à 100%.