000 00309nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621.39
100 _aAugust E Grant
245 0 _aCommunication Technology : Update and Fundamentals
250 _a11
260 _bElsevier, New Delhi
_c2009
942 _cBK
999 _c18434
_d18434