000 00292nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621.3813
100 _aCharls L Phillips
245 0 _aSignals, systems and transformers
250 _a3
260 _bPearson Education
_c2004
942 _cBK
999 _c5795
_d5795