000 00381nam a2200157Ia 4500
008 210901s1990 xx 000 0 eng d
020 _a0876923961
082 _a621.3811 ROD
100 _aRoddy, Dennis
245 0 _aElectronic communications
250 _a.
260 _aDelhi
_bPrentice Hall of India
_c1990
300 _a788
650 _aEngineering
942 _2ddc
_cBK
_01
999 _c19272
_d19272