000 00290nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621.3813
100 _aNarayana Iyer S
245 0 _aSignals and System
250 _a1
260 _bCengage Learning Pltd Newdelhi
_c2011
942 _cBK
999 _c30049
_d30049