Instruções sobre os serviços de Grande Conservação dos Traçados em Fios Nús / Administração Geral dos Correios, Telégrafos e Telefones
Report on electric powers (protective clauses) : proceedings of the committee, minutes of evidence, appendiz, and index / Joint Committee of the house of Lords; The House of Commons
Report of plenary meetings held June, 1935 / International Electrotechnical Commission