000 00276nam a2200121Ia 4500
008 211126s9999 xx 000 0 und d
082 _a621.38T
100 _aTAUB SCHILLING
245 0 _aPRINCIPLES OF COMM. SYSTEMS
260 _bT.M.H
365 _b230.00
942 _cBTECH
999 _c131509
_d131509