000 00453nam a2200169Ia 4500
001 aQ3787
008 220802s9999 xx 000 0 und d
020 _a0-201-42300-6
100 _a Beck ,Leland L.
245 0 _aSystem Software:an introduction to systems programming
250 _a3rd
260 _c1997
300 _axiii,519
600 _aEngineering Technology
650 _aComputer science, information & general works
942 _bBooks
_cBK
999 _c5513
_d5513