000 00325nam a2200133Ia 4500
008 190719s9999 xx 000 0 und d
020 _a0-256-15151-2
082 _a621.381 951 C 953
100 _aCROWLEY,C
245 0 _aOPERATING SYSTEMS
260 _aCHICAGO
_bIRWIN
_c1997
300 _a876P.,24X19CMS.
942 _cBK
_2DDC
999 _c44358
_d44358