000 00294nam a2200121Ia 4500
020 _a9788120310414
100 _aYyless Black
245 _aComputer Networks: Protocols, Standards and Inferfaces
250 _a2nd
260 _bPHI Learning
_aNew Delhi
_c2011
300 _axii+436
942 _cBK
999 _c57371
_d57371