000 00426nam a2200169Ia 4500
008 180424s9999 xx 000 0 und d
020 _a335027539
084 _a510.78 O1:2
245 0 _aIntroduction to System Software Program Controlled Input Output
250 _a\\197500ENGGPSX
260 _aO U P
260 _b1975
260 _cLondon
300 _a56p
500 _aincludes index and biblioraphy
942 _cBK
999 _c39181
_d39181