000 00331nam a2200145Ia 4500
008 220926s9999 xx 000 0 und d
100 _aJames L.Petersone
245 0 _aOperating System Concepts
250 _a2nd Ed
260 _aNewyork
260 _b-
260 _c1978
650 _aOperating System Concepts
942 _cBK
999 _c13888
_d13888