00290nam a2200109Ia 4500008004100000082001500041100002000056245004600076250000800122260004200130300000800172190709s9999    xx            000 0 und d  a519.4C897M  aCulbertson, J T 0aMathematics and logic for digital devices  a1nd  aLondonbD.Van Nostrand Company,c1964  a224