title: Finding public opinion data: a guide to sources.
authors: National Opinion Research Center, University of Chicago.
authors: T W
authors: TW
authors: Smith
authors: F D
authors: FD
authors: Weil
mesh_terms: D001109:Archives; D005060:Europe; D007255:Information Services; D011639:Public Opinion; D013223:Statistics as Topic; D014481:United States