000			00304nam a22001337a 4500
020			_a9788120349070
082			_a004.6
100			_aSINGH BRIJENDRA
245			_aDATA COMMUNICATIONS AND COMPUTER NETWORKS
250			_a4TH
260			_aNEW DELHI _bPHI _c2014
300			_aXVII, 482P
942			_cBK
999			_c9160 _d9160