| 000 | 00908nam a2200229 a 4500 | ||
|---|---|---|---|
| 008 | 2000 | ||
| 020 | _a0711027641 | ||
| 029 | _aT55303 | ||
| 082 | 0 | 4 | _a940.5451 |
| 100 | 1 |
_aShowell, Jak P. Mallmann. _9111856 |
|
| 245 | 1 | 0 |
_aEnigma U-boats : _bbreaking the code / _cJak P. Mallmann Showell. |
| 260 |
_aShepperton, Surrey : _bIan Allan Publishing, _c2000. |
||
| 300 |
_a192 p. : _bill. ; _c27 cm. |
||
| 504 | _aIncludes bibliographical references (p. 186-188) and index. | ||
| 590 | _aCian Ó Sé collection. | ||
| 650 | 0 |
_aWorld War, 1939-1945 _xCryptography. _9111858 |
|
| 650 | 0 |
_aWorld War, 1939-1945 _xNaval operations _xSubmarine. _9111743 |
|
| 650 | 0 |
_aWorld War, 1939-1945 _xNaval operations, German. _944122 |
|
| 907 |
_a.b11123631 _b140424 _c140424 |
||
| 942 | _n0 | ||
| 998 |
_an _b140424 _cm _da _e- _feng _genk _h0 |
||
| 999 |
_c97704 _d97704 |
||