000 00289nam a2200109Ia 4500
008 190826s9999 xx 000 0 und d
082 _a001.543 GAR
100 _aGardner, Martin
245 0 _aCodes, Ciphers and Secret Writing
260 _aNew York
_bDover Publication
_c2010
942 _cBOOK
999 _c54496
_d54496