000 00321nam a2200133Ia 4500
008 220709s9999 xx 000 0 und d
082 _a00 4.076
245 0 _aOPERATING SYSTEMS : OBJECTIVE PRACTICE SETS: COMPUTER SCIENCE & IT
250 _a7
260 _bMADE EASY
260 _c2021
300 _a121
942 _cREF
999 _c81058
_d81058