000 00265nam a2200121Ia 4500
008 201121s9999 xx 000 0 und d
100 _aSTALLINGS,WILLIAM
245 0 _aOPERATING SYSTEM
250 _a2ND
260 _bN.D. PHI
_c2000
300 _c701
942 _cBK
999 _c10755
_d10755