000 00290nam a2200121Ia 4500
100 _aHanson, Owen
020 _a0-273-02085-4
942 _cBK
245 _aEssentials of computer data files
260 _aPitman publishing limited, London
_c1985
082 _a001.64 Han
300 _axii,176
999 _c18771
_d18771