000 00265nam a2200109Ia 4500
008 220201s1989 xx 000 0 eng d
082 _a621.38195
_bHAL
245 0 _aDigital circuits and systems
260 _aDelhi
_bMcgraw Hill
_c1989
300 _a654
942 _2ddc
999 _c34962
_d34962