Blue book
Subtitle: IXth Plenary Assembly, Melbourne, 14-25 November, 1988
By: CCITT, the International Telegraph and Telephone Consultative Committee.
Contributors: International Telegraph and Telephone Consultative Committee.; International Telecommunication Union.
Publisher: International Telecommunication Union
Published: 1989
Place of publication: Geneva
Language: eng
Number of pages: 61
Subjects: Telecommunication -- Congresses.