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| 005 | 20231129120843.0 | ||
| 008 | 150911s19uu xx 00 eng d | ||
| 020 | _a9780545290081 | ||
| 040 |
_6HSLRC _aHSLRC _cHSLRC |
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| 100 | 1 |
_aBlackwood, Gary _99867 |
|
| 245 | 1 | 0 |
_aMysterious messages: _ba history of codes and ciphers / _cGary Blackwood |
| 260 | 0 |
_aNew York : _bScholastic, _cc2009. |
|
| 300 | _a170pages. ; 18cm. | ||
| 526 |
_c1150 _d9 |
||
| 700 |
_a Jason Henry. _940825 |
||
| 942 |
_2lcc _cBK |
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| 999 |
_c75197 _d75197 |
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