Geneva International Telecommunication Union. General Secretatiat. Radio regulation, additional radio regulations, additional protocol, resolutions and recommendations, Geneva, 1959.
Lua i Stíl Chicago (17ú heag.)Geneva International Telecommunication Union. General Secretatiat. Radio Regulation, Additional Radio Regulations, Additional Protocol, Resolutions and Recommendations, Geneva, 1959.
Lua MLA (9ú heag.)Geneva International Telecommunication Union. General Secretatiat. Radio Regulation, Additional Radio Regulations, Additional Protocol, Resolutions and Recommendations, Geneva, 1959.
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