000 00292nam a2200121Ia 4500
008 220201s1989 xx 000 0 eng d
082 _a621.3815
_bHAL
100 _aHall,Douglas V.
245 0 _aDigital circuits and system
260 _aNy
_bMcgraw Hill
_c1989
300 _a554
942 _2ddc
999 _c34554
_d34554