000 00282nam a2200121Ia 4500
008 220201s1997 xx 000 0 eng d
082 _a5.43
_bPET
100 _aPeterson, A J
245 0 _aOperating system concepts
260 _aDelhi
_bA.H.W.
_c1997
300 _a888
942 _2ddc
999 _c35322
_d35322