000 00286nam a2200121Ia 4500
020 _a9788131715369
100 _aWilliam Stallings
245 _aData and Computer Communications
250 _a8th
260 _c2008
_bPearson/Prentice-Hall
_aNew Delhi
300 _axvi+834
942 _cBK
999 _c34583
_d34583