Operation Regal the Berlin Tunnel (S-CCO) [strikethrough]
| Format: | Government Document Electronic Book |
|---|---|
| Language: | English |
| Published: |
[Fort George G. Meade, Md.] :
National Security Agency/Central Security Service,
1988
|
| Series: | United States cryptologic history Special series ;
no. 4. |
| Subjects: |