Blue book Vol. 4. Fasc. 4.2, Maintenance of international telegraph, phototelegraph and leased circuits = Maintenance of the internationalpublic telephone network = Maintenance of maritime satellite and data transmission systems = Recommendations M.800-M.1375 - IXth Plenary Assembly, Melbourne, 14-25 November 1988

Författare
International Telegraph and Telephone Consultative Committee
Genre
Konferenspublikation
Språk
Engelska
Förlag År Ort Om boken ISBN
1989 Schweiz 126 sidor. : ill. 92-61-03411-X