000 00356nam a2200133Ia 4500
005 20260413100750.0
008 230516s9999||||xx |||||||||||||| ||und||
100 _aStallings william
245 0 _aData & computer communication
260 _bPearson Prentice Hall N Delhi
_c2009
300 _a834
942 _cGB
999 _c4445
_d4445