Canadian National-Canadian Pacific Telecommunications, Trans-Canada Telephone System, & Telephone Association of Canada. (1971). Study of institutional structure of telephone operating industries. Dept. of Communications.
Dyfyniad Arddull ChicagoCanadian National-Canadian Pacific Telecommunications, Trans-Canada Telephone System, and Telephone Association of Canada. Study of Institutional Structure of Telephone Operating Industries. [Ottawa: Dept. of Communications, 1971.
Dyfyniad MLACanadian National-Canadian Pacific Telecommunications, et al. Study of Institutional Structure of Telephone Operating Industries. Dept. of Communications, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.