000 00309nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a621.381951 P485
100 _aPETERSON,J.L
245 0 _aOPERATING SYSTEM CONCEPTS
260 _aMassachusetts
_bAddison Wesley
_c1985
300 _a24X16
942 _cBK
_2DDC
999 _c21147
_d21147