000 00360nam a2200145Ia 4500
008 160615s9999 xx 000 0 und d
100 _aDVORAK(John C) et al
245 _aDvorak's guide to PC telecommunication
260 _bOsborne McGraw Hill
260 _c1990
300 _axlvii p. + 1053
942 _cBooks
999 _c19253
_d19253