%0 Online %0 Book %I U.S. Government Printing Office %D 2013 %C Washington %G English %B S. hrg. ; %T The effectiveness of media ratings : hearing before the Subcommittee on Science, Technology, and Space of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Eighth Congress, second session, September 28, 2004 %U http://purl.fdlp.gov/GPO/gpo37569