000 00296nam a2200121Ia 4500
008 220201s2002 xx 000 0 eng d
082 _a621.384
_bSCH
100 _aSchweber, W
245 0 _aElectronic communication system
260 _aDelhi
_bPrentice Hall
_c2002
300 _a820
942 _2ddc
999 _c36957
_d36957