000 00297nam a2200121Ia 4500
008 220201s1999 xx 000 0 eng d
082 _a621.38
_bDES
100 _aDeshpaney, N D
245 0 _aCommication electronics
260 _aNew Delhi
_bTata McGraw Hill
_c1999
300 _a418
942 _2ddc
999 _c28089
_d28089