000 00242nam a2200109Ia 4500
020 _a8178080869
082 _a004.6
100 _aCOMER, DOUGLAS.E
245 _aCOMPUTER NETWORKS AND NETWORK
260 _aNEW DELHI
_b PEARSON
_c2000
942 _cBK
999 _c2394
_d2394