000 00241nam a2200109Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aSINGH(BRIJENDRA)
245 0 _aDATA COMMUNCATION
250 _a2 ED
260 _bPHI
942 _2ddc
_cMCA
999 _c13702
_d13702