000 00309nam a2200133Ia 4500
008 230401s2011 xx 000 0 eng d
082 _a4
100 _aSINGH (BRIJENDRA)
245 0 _aDATA COMMUNICATION AND COMPUTER NETWORK
250 _a3
260 _bDELHI PHI
_c2011
300 _a399
942 _2ddc
_cBTECH
999 _c199
_d199