00873cam a2200265 a 4500003000800000005001700008007000300025008004100028020001500069040001700084041000800101050002200109082001500131245007600146260004300222300003500265440003000300504005100330650005300381650005000434650003700484650001900521650003900540700002800579BJBSDDR20230410124215.0ta021114s2003    maua     b    001 0 eng    a026252340X  bspacBJBSDDR  aeng14aP 91.5bC734 200300a302.2/097300aCommunication researchers and policy-making /cedited by Sandra Braman.  aCambridge, Mass. :bMIT Press,cc2003.  axiii, 605 p. :bill. ;c23 cm. 4aThe MIT Press sourcebooks  aIncludes bibliographical references and index. 0aCommunicationxResearchzUnited StatesxHistory. 0aCommunication policyzUnited StatesxHistory. 4aComunicaciónxInvestigaciones  0aComunicación 0aMedios de comunicación de masas 1 aBraman, Sandra, d1951-