Não informado. (1934). Journal des telecommunications. Union Internationale des Telecommunications.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal Des Telecommunications. Geneva, Suíça: Union Internationale des Telecommunications, 1934.
Lua MLA (8ú heag.)Não informado. Journal Des Telecommunications. Union Internationale des Telecommunications, 1934.
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