Determination of the economic impact of new services on telecommunication undertakings
著者
書誌事項
Determination of the economic impact of new services on telecommunication undertakings
（Economic studies at the national level in the field of telecommunications, 9）
International Telecommunication Union : International Telegraph and Telephone Consultative Committee, 1984
- pbk.
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注記
At head of title: GAS 5
Bibliography: p. 43