000 00371nam a2200157Ia 4500
008 131111s9999 xx 000 0 und d
100 _aBenjamin,J B
245 _aCommunication :concepts and contexts
260 _aNew York
260 _bHarper
260 _c1989
300 _a104p.
650 _aCommunication
_aComputers
_aLanguage
763 _a2710
942 0 0 _01
999 _c56456
_d56456