000 00314nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a681.3
_bWU
100 _aWu, Margaret S
245 0 _aIntroduction to computer data processing
260 _aNew York
_bHarcourt
_c1975
650 _aData processing
942 _cBK
999 _c23929
_d23929