000 00308nam a2200121Ia 4500
008 170912s9999 xx 000 0 und d
082 _a657.74 WIL/B WIL/(
100 _aWILLIAM STALLINGS
245 0 _aBUSSINESS DATA COMMUNICATIONS
250 _a4th Ed.
260 _bPEARSON EDUCATION
_c2002
942 _cTB
999 _c50149
_d50149