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008 220117s9999||||xx |||||||||||||| ||und||
020 _a9780273020851
040 _cIAB
082 _a001.6442 HAN
100 _aHanson,Owen
245 0 _aEssentials Of Computer Data Files
260 _bPitman Publishing Limited
_c1985
999 _c29917
_d29917