000 00312nam a2200133Ia 4500
008 221102s9999 xx 000 0 und d
100 _aStallings, William
245 0 _aBusiness data communications
250 _a2nd ed.
260 _bMacmillan
_aUSA
_c1994
300 _a659p p.
700 _aSlyke
942 _cBK
999 _c1319
_d1319