| 000 | 01232nam a2200397 a 4500 | ||
|---|---|---|---|
| 999 |
_c349 _d349 |
||
| 001 | 013840921 | ||
| 003 | UkOxU | ||
| 005 | 20190807092024.0 | ||
| 008 | 000607s2000 enka 001 0 eng | ||
| 015 | _abA0X5928 | ||
| 020 | _a1857028899 | ||
| 020 | _a9781857028898 | ||
| 035 | _a(UkLCURL)991857028899 | ||
| 040 |
_aBDS _cKH8 |
||
| 050 | 4 |
_aZ103 _bSIN |
|
| 082 | 1 | 4 |
_a652.8 SIN _221 |
| 100 | 1 |
_aSingh, Simon. _eauthor |
|
| 245 | 1 | 4 |
_aThe code book : _bthe secret history of codes and code-breaking / _cSimon Singh. |
| 260 |
_aLondon : _bFourth Estate, _c2000. |
||
| 300 |
_axiii, 402 p. : _bill. ; _c20 cm. |
||
| 500 | _aOriginally published: 1999. | ||
| 504 | _aIncludes bibliographical references and index. | ||
| 650 | 0 |
_aCryptography _xHistory. |
|
| 650 | 0 | _aCiphers. | |
| 650 | 0 | _aData encryption (Computer science) | |
| 650 | 0 | _aConfidential communications. | |
| 650 | 0 | _aCryptography. | |
| 942 |
_2ddc _cNFIC |
||