00455nam a2200205Ia 4500008004100000037001300041037001600054037001600070040000800086041001200094082001100106100003500117245004100152250000600193260001500199300000600214365000700220630001400227650000800241150814s9999    xx            000 0 und d  cPurchase  gU. S. I. S.  nU. S. I. S.  beng  aEnglish  a301.16  aWilliam L. River & Wilbur Schv  aRESPONSIBILITY IN MASS COMMUNICATION  a0  c1977/10/21  g0  b10  asociology  aNil