000 00309nam a2200121Ia 4500
020 _a9788120329980
100 _aDouglas E Comer
245 _aInternetworking With TCP/IP: Vol-1: Principles, Protocals and Architecture
250 _a5th
260 _c2008
_bPHI
_aNew Delhi
300 _axxix+650
942 _cBK
999 _c35715
_d35715