Pamela J. Shoemaker · 10 obras en el catálogoObrasHow to Build Social Science TheoriesCommunication campaigns about drugsTTelejornais em exameTelejornais em exameMMediating the Message in the 21st CenturyMediating the Message in the 21st CenturyBBuilding a theory of news contentBuilding a theory of news content1987Communication Campaigns About Drugs1989Gatekeeping1991GGatekeeping theoryGatekeeping theory2009News around the world2005Mediating the message1991