
1.		Final acts : of the Regional Administrative Conference for the Planning of VHF/UHF Television Broadcasting Area and Neighbouring Countries: Geneva, 1989 / International Telecommunication Union Data Publicação: 1989 Tema: UIT-União Internacional das Telecomunicações
2.		Functional specification and description language (SDL) : criteria for using formal description techniques (FDTs): recommendation Z.100 and annexes A, B, C and E, recommendation Z.110 / International Telecommunications Union Data Publicação: 1989 Tema: UIT-União Internacional das Telecomunicações
3.		General characteristics of international telephone connections and circuits : recommendations G.100 - G.181 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
4.		General recommendations on telephone switching and signalling : functions and information flows for service in the ISDN: supplements: recommendations Q.1- Q.118 bis / International Telecommunication Union Data Publicação: 1989 Tema: Vária
5.		Telematic, data transmission and teleconference services operations and quality of service : recommendations F.160 - F.353, F.600, F.601, F.710 - F.730 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
6.		Maintenance of international telegraph, phototelegraph and leased circuits : maintenance of the international public telephone network: maintenance of maritime satellite and data transmission systems: recommendations M.800 - M.1375 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
7.		Telephone network and ISDN : quality of service, network management and traffic engineering: recommendations E.401 - E.880 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
8.		Telegraph and mobile services operations and quality of service : recommendations F.1 - F.140 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
9.		Integrated services digital network (ISDN) : general structure and service capabilities: recommendations I.110 - I.257 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
10.		Rapport sur l'activité de l'Union Internationale des Télécommunications pour l'année 1988 / Union Internationale des Télécommunications Data Publicação: 1989 Tema: UIT-União Internacional das Telecomunicações
11.		Annuaire statistique des télécommunications du secteur public : (séries chronologiques 1978-1987) / Union Internationale des Télécommunications Data Publicação: 1989 Tema: UIT-União Internacional das Telecomunicações
12.		International telecommunication regulations : final acts of the world administrative telegraph and telephone conference: Melbourne, 1988: (WATTC-88) Data Publicação: 1989 Tema: Vária