000 00324nam a2200133Ia 4500
999 _c46714
_d46714
008 190719s9999 xx 000 0 und d
020 _a0070587302
082 _a621.384 S651
100 _aSmith, Jack.
245 0 _aModern Communication Circuits
260 _aNew York
_bMcGraw-Hill
_c1986
300 _a21X15
942 _cBK