00506nam a2200181 a 450000500170000002000150001708200200003210000260005224500560007826000280013430000230016263000150018563000180020096400160021899700110023499900150024595200640026020251202164304.0  a058228337X  a001.510321bCON  aConnors, Tracy Daniel  aLongman dictionary of mass media  and communication  aNew YorkbLongmanc1982  a255p.b20cm.c20cm  aMass media  aCommunication  bcdefg_  a9068 C  c6281d6281  02104070aPUbPUd1998-09-18l0o001.510321 CONp9068yBK