International Telecommunication Union. (2001). ITU-T recommendations on cd-rom (English version.). International Telecommunication Union.
Cita Chicago (17th ed.)International Telecommunication Union. ITU-T Recommendations on Cd-rom. English version. Geneva: International Telecommunication Union, 2001.
Cita MLA (9th ed.)International Telecommunication Union. ITU-T Recommendations on Cd-rom. English version. International Telecommunication Union, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.