Cita APA (7th ed.)

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.