000 00312nam a2200133Ia 4500
001 4285
008 150525s9999 xx 000 0 und d
020 _a0-273-02085-4
100 _aHanson Owen
245 _aEssentials Of Computer Data Files
250 _a1
260 _aLondon
_bPitman
_c1985
300 _a,;ill.
999 _c33266
_d33266