000 00271nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aPeter Norton & et.al
245 0 _aInside the IBM PC / PS / 2
260 _bNil
260 _c1992
365 _b0.00
942 _cBK
999 _c137517
_d137517