000 00244nam a2200109Ia 4500
082 _a621.381954 HAN
100 _aHANSEN, PER BRUNCH
245 _aOPERATION SYSTEM PRINCIPLES
260 _bPRENTICE HALL
_c1973
300 _a366
942 _2ddc
_cB
999 _c46846
_d46846