000 00313nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621.382
100 _aHa H Nguyen
245 2 _aA First Course In Digital Communications
250 _a1
260 _bCambridge University Press,New Delhi
_c2011
942 _cBK
999 _c21855
_d21855