000 00305nam a2200121Ia 4500
008 161118s2016 xx 000 0 und d
082 _a001.64 HAN-E
100 _aHanson, Owen
245 0 _aEssential of Computer Data files
260 _aLondon
_bPitman Publishing
_c1985
300 _a176p.
942 _2ddc
999 _c22599
_d22599