000 00285nam a2200133Ia 4500
008 241124s9999 xx 000 0 und d
100 _aCarlson, A.B.
245 0 _aCommunication Systems
250 _a4
260 _bTata McGraw Hill
260 _c2002
300 _a850
942 _cBK
999 _c1711
_d1711