000 00385nam a2200181Ia 4500
008 240220s9999 xx 000 0 und d
041 _aENG
082 _a621381
100 _aSingh R. P.
245 0 _aCommunication systems.
260 _aNULL
260 _bMcgraw Hill International.
260 _c1997
300 _a542p.
365 _b145
650 _aETC
942 _cDBK
999 _c26046
_d26046