Biagi, Shirley <br/><br/>Media/ impact:  an introduction to mass communication Shirley Biagi  -- Belmont, Ca.  Wadsworth Publication  1999 <br/>xx, 428p.  ill.  23cm. <br/><br/> Includes bibliographical references and index. <br/><br/><label>ISBN: </label>0534089461 <br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media.<br/><br/><label>Dewey Class. No.: </label>GC 302.23 B47 1988