000 00292nam a2200121Ia 4500
008 201121s9999 xx 000 0 und d
100 _aSTALLINGS,WILLIAM
245 0 _aDATA AND COMPUTER COMMUNICATIONS
250 _a6TH
260 _bDELHI PEARSON EDU.
_c2002
300 _c810
942 _cBK
999 _c10699
_d10699