Biagi, Shirley <br/><br/>Media/impact :  an introduction to mass communication / Biagi, Shirley  -- Updated 1st ed.   -- Belmont, CA :  Wadsworth Pub.,  1990 <br/>xx, 411 p. :  ill. ;  23 cm.  <br/><br/> Includes bibliographical references and index.  <br/><br/><label>ISBN: </label>053412660x <br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media.<br/><br/><label>Dewey Class. No.: </label>GC 302.23 B47 1990