00373nam a2200133Ia 4500008004100000020001800041040003800059100002000097245004100117250000800158260003100166300001600197653002600213211231s9999    xx            000 0 und d  a981-243-507-7  cJayakar Knowledge Resource Centre  aWimmer, Roger D 0aMass media research: an introduction  a7th  bWadsworthaAustraliac2003  axii,488p p.  aMass media - Research