000 00303nam a2200121Ia 4500
008 220201s1995 xx 000 0 eng d
082 _a621.382
_bSIN
100 _aSingh, RP
245 0 _aCommunication system analog & digital
260 _bDelhi: Tata McGraw Hill
_c1995
300 _a592
942 _2ddc
999 _c86324
_d86324