Cita APA (7th ed.)

CCITT & International Telegraph and Telephone Consultative Committee. (1981). VIIth Plenary Assembly. International Telecommunication Union.

Cita Chicago (17th ed.)

CCITT i International Telegraph and Telephone Consultative Committee. VIIth Plenary Assembly. Ginebra: International Telecommunication Union, 1981.

Cita MLA (9th ed.)

CCITT i International Telegraph and Telephone Consultative Committee. VIIth Plenary Assembly. International Telecommunication Union, 1981.