000 00259nam a2200109Ia 4500
008 230901s9999 xx 000 0 eng d
100 _aGalvin (Peter B)
245 0 _aOperating System Principals
250 _a1
260 _bJOHN WILEY
942 _2ddc
_cSCIENCE
999 _c19434
_d19434