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Votre recherche : subject_txt:"Telephone" a repéré
3 documents.
1.
History of regulation and current regulatory setting
/ Trans-Canada Telephone System (TCTS); Canada. Dept. of Communications.
Ottawa : Information Canada, 1970, c1971.
2.
Canada government statutes : telephone & telegraph companies, 1847-1941
/ Canadian Radio-Television Commission (CRTC).
[Ottawa : Canadian Radio-Television Commission], 1970.
3.
Radio's first voice : the story of Reginald Fessenden
/ Raby, Ormond; Canadian Communications Foundation.
(2nd print.).
Toronto : Canadian Communications Foundation, c2001, c1970.
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