
1.		General tariff principles : charging and accounting in international telecommunication services: recommendations of the D series / International Telecommunication Union Data Publicação: 1985 Tema: Vária
2.		General tariff principles : charging and accounting in international telecommunication services: Series D recommendations / International Telecommunication Union Data Publicação: 1989 Tema: Vária
3.		World information society report 2006 / ITU - International Telecommunication Union Data Publicação: 2006 Tema: UIT-União Internacional das Telecomunicações

General tariff principles : charging and accounting in international telecommunication services: recommendations of the D series / International Telecommunication Union

Data Publicação: 1985 Tema: Vária

General tariff principles : charging and accounting in international telecommunication services: Series D recommendations / International Telecommunication Union

Data Publicação: 1989 Tema: Vária

Data Publicação: 2006 Tema: UIT-União Internacional das Telecomunicações