150 let otechestvennomu telegrafu
By: S.I. Mart͡senit͡sen, V.V. Novikov.
Publisher: "Radio i svi͡azʹ"
Published: 1982
Place of publication: Moskva
Language: rus
Number of pages: 147
Other titles: Sto pi͡atʹdesi͡at let otechestvennomu telegrafu.