000 00282nam a2200121Ia 4500
008 211126s9999 xx 000 0 und d
082 _a6.3
100 _aANN MCLVER MCHOES
245 0 _aUNDERSTAINDING OPERATING SYSTEMS
260 _bCENGAGE
365 _b399.00
942 _cBTECH
999 _c168101
_d168101