000 00300nam a2200133Ia 4500
008 131111s9999 xx 000 0 und d
100 _aVivian, John
245 _aMedia of mass communication
260 _aNew York
260 _bAllan & Bacon
260 _c1991
300 _a410p.
763 _a1724
999 _c55147
_d55147