00393nam a2200157Ia 4500008004100000020001500041041000800056082001600064100002100080245003400101250000600135260005200141300000800193365001400201650002000215140306s9999    xx            000 0 und d  a0070038996  aeng  a004bBAR/DI  aBartee, Thomas C  aDigital computer fundamentals  a6  aNew YorkbMc Graw-Hill Publishing Companyc1985  a610  bRs.191.75  aBoolean algebra