| 000 | 00692nam a22002297a 4500 | ||
|---|---|---|---|
| 003 | OSt | ||
| 005 | 20250829132836.0 | ||
| 008 | 250829b |||||||| |||| 00| 0 eng d | ||
| 020 | _a9780198532873 | ||
| 040 | _aKenya National Library Service | ||
| 082 | _a652.8 WEL | ||
| 100 | _aWelsh, Dominic | ||
| 245 |
_aCodes and cryptography / _c Dominic Welsh. |
||
| 264 |
_aOxford : _b Oxford University Press, _c1988. |
||
| 300 |
_aix, 257 pages : _billustrations, _c23 cm. |
||
| 490 | _aOxford Science Publications | ||
| 500 | _aIncludes bibliographical references and index. | ||
| 650 | _2Cryptography | ||
| 650 | _2ciphers (codes) | ||
| 942 |
_2ddc _cANF _n0 |
||
| 999 |
_c487443 _d487443 |
||