Paperback
ISBN: 978-92-61-01331-8
ISBN-10: 92-61-01331-7
The Union ยท 1982
| See also: | ||
| 1984 | Paperback | Twenty-third report (Booklet / International Telecommunication Union) |
| 1983 | Paperback | Twenty-second report (Booklet / International Telecommunication Union) |