000 00500nam a22001937a 4500
003 330010
005 20260721085358.0
008 260721b sa ||||| |||| 00| 0 eng d
020 _a9780778775508
040 _c3228
082 0 _aJ 005.8 HUBB
100 _976247
_aHubbard Ben
245 1 4 _aCode Breakers
250 _a1st Ed.
260 _aNew York
_bCrabtree Publishing Company
_c2010
300 _a32 pages
_bPicture Illustrations
_c25 cm
490 1 _aHigh Tech World
942 _2ddc
_cBOOK
_y190
_zDudu Mondlane
999 _c803076
_d803075