000 00305nam a2200121Ia 4500
008 230303s9999 xx 000 0 und d
041 _aeng
082 _a621.382, CHA
100 _aChakrabarti P
245 _aPrinciples Of Digital Communication
260 _aNEW DELHI
_bDhanpat Rai &Sons
365 _cRS
999 _c193462
_d193462