ISBN: 978-92-61-03451-1
ISBN-10: 92-61-03451-9
International Telecommunication Union · 1989
See also: | ||
1989 | Unknown Binding | Blue book: IXth Plenary Assembly, Melbourne, 14-25 November 1988 |
1989 | Paperback | Blue book: IXth Plenary Assembly, Melbourne, 14-25 November 1988 |