000 00339nam a2200133Ia 4500
005 20260413100456.0
008 230516s9999||||xx |||||||||||||| ||und||
100 _aDuck,Michael
245 0 _aData Communications & Computer Networks
260 _bSouth Asia,Pearson
_c2009
300 _a415
942 _cGB
999 _c1552
_d1552