000 00268nam a2200097Ic 4500
008 240520s9999 xx 000 0 und d
100 1 _aJohnson, David E.
245 1 0 _aDigital circuits and microcomputer /
_cDavid E. Johnson
264 1 _bPrentice Hall
_c1979
942 _cBK
999 _c19190
_d19190