1981 Mar 10 - 1984 Feb 9
Prime Ministerial Private Office files
PREM19/1387
Security (Government Communications Headquarters (GCHQ): changes in funding, status and staffing) (Part 1)
| Source: | TNA, PREM19 series |
|---|---|
| Release date: | Retained |
| Classification: | Retained Sec 3.4 |
| Page count: |