000 00350nam a2200133Ia 4500
008 211228s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aTwitty, Willam B
245 0 _aUnix: on the ibmpc
260 _bGalgotia
_aNew Delhi
_c1987
300 _a[6], 214p p.
653 _aComputer science
942 _c1
999 _c214458
_d214457