000 00275nam a2200109Ia 4500
008 230411s9999 xx 000 0 und d
082 _a621.381950
_bPUR
100 _a PURI (V.K.)
245 0 _aDigital Electronics Circuits and Systems
260 _b MGH
_a NEW YORK
942 _cBK
999 _c437
_d437