000 00327nam a2200133Ia 4500
008 240115s9999 xx 000 0 und d
050 _aQA76.5.Z53 1967
100 _aZiegler, James. R.
245 0 _aTime-sharing data processing systems
260 _aEnglewood cliffs
260 _bPrentice-Hall
260 _c1967
942 _aBK
999 _c965
_d965