000 00286nam a2200133Ia 4500
008 241124s9999 xx 000 0 und d
100 _aShanmugam,S
245 0 _aDigital & Analog Communication System
250 _a621.38
260 _b-
260 _c0
300 _a600
942 _cBK
999 _c8529
_d8529