000 00279nam a2200097Ia 4500
008 180829s2011 xx 000 0 und d
100 _aSINGH, BRIJENDRA
245 _aDATA COMMUNICATION AND COMPUTER NETWORK
260 _aPUNE
_bPHI LEARNING PVT LIMITED ,DELHI
_c2011
300 _a399
999 _c168322
_d168322