000 00312nam a2200121Ia 4500
008 220201s1999 xx 000 0 eng d
082 _a621.382
_bCHA
100 _aChakrabarti, P
245 0 _aPrinciples of digital communication
260 _aNew Delhi
_bDhanpat Rai & sons
_c1999
300 _a402
942 _2ddc
999 _c27942
_d27942