000 00356nam a2200145Ia 4500
008 240309s9999 xx 000 0 und d
020 _a9788131790625
040 _cRIT
100 _aDUMAS BARRY M
245 0 _aPRINCIPLES OF COMPUTER NETWORKS AND COMMUNICATIONS
260 _c2009
_bPEARSON
300 _a519
942 _cBK
999 _c119401
_d119401