00478nam a2200217Ia 4500008004100000037001300041037000800054037002800062040000800090041001200098082001100110100003500121245003600156250000600192260001200198260001500210300000600225365000700231630001400238650000800252150814s9999    xx            000 0 und d  cPurchase  gNil  nAmerican - Lib , Madras  beng  aEnglish  a301.16  aW. Phillip Davison And James B  aMASS MEDIA: SYSTEMS AND EFFECTS  a0  bPraeger  c1987/07/01  g0  b35  asociology  aNil