| 000 | 00343nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 240618s9999||||xx |||||||||||||| ||und|| | ||
| 020 |
_aNCST _c70 |
||
| 040 | _aMAIN | ||
| 082 | _a94 | ||
| 100 |
_aWEST,NIGEL _937044 |
||
| 245 | 0 | _aGCHQ: THE SECRET WIRELESS WAR 1900-86 | |
| 250 | _a1 | ||
| 260 |
_bHS _c1987 |
||
| 300 | _b400 | ||
| 942 | _cBK | ||
| 999 |
_c43896 _d43896 |
||