000 00254nam a2200109Ia 4500
008 200129s9999 xx 000 0 und d
082 _a005.43 STA-O
100 _aSTALLINGS, WILLIAM
245 0 _aOPERATING SYSTEMS
260 _bPEARSON
_c2018
942 _cBK
999 _c1351
_d1351