00474nam a2200157Ia 450000100040000000500170000400800410002102000150006208200180007710000210009524500800011625000120019626000490020830000310025765000280028813220261006003424.0120911s9999    xx            000 0 und d  a0534139620  a302.23072 WIM  aWimmer, Roger D.  aMass media research : an introduction / Roger D.Wimmer, Joseph R. Dominick.  a3rd ed.  aBelmont, Calif. : Wadsworth Pub. Co., c1991.  axv, 478 p. : ill. ; 25 cm.  aMass media -- Research.