000 00326nam a2200121Ia 4500
008 220201s1991 xx 000 0 eng d
082 _a621.381
_bTOC
100 _aTocci,Ronald J
245 0 _aDigital system principles & application
260 _alondon
_bNewtersey regents prentice hill
_c1991
300 _a765
942 _2ddc
999 _c34568
_d34568