International Telegraph and Telephone Consultative Committee & International Telecommunication Union. (1964). National telephone networks for the automatic service: IIIrd Plenary Assembly, Geneva, 1964. International Telecommunication Union.
Citazione stile Chigago Style (17a edizione)International Telegraph and Telephone Consultative Committee e International Telecommunication Union. National Telephone Networks for the Automatic Service: IIIrd Plenary Assembly, Geneva, 1964. Geneva: International Telecommunication Union, 1964.
Citatione MLA (8a ed.)International Telegraph and Telephone Consultative Committee e International Telecommunication Union. National Telephone Networks for the Automatic Service: IIIrd Plenary Assembly, Geneva, 1964. International Telecommunication Union, 1964.