International telecommunication union. (1973). Twelth report by the International telecommunication union on telecommunication and the peaceful uses of outer space. Geneva: International telecommunication union.
Styl cytowania ChicagoInternational telecommunication union. Twelth Report By the International Telecommunication Union On Telecommunication and the Peaceful Uses of Outer Space. Geneva: International telecommunication union, 1973.
Styl cytowania MLAInternational telecommunication union. Twelth Report By the International Telecommunication Union On Telecommunication and the Peaceful Uses of Outer Space. Geneva: International telecommunication union, 1973.
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