Berelson, B., & Janowitz, M. (1966). Reader in public opinion and communication (2d ed.). Free Press.
Lua i Stíl Chicago (17ú heag.)Berelson, Bernard, agus Morris Janowitz. Reader in Public Opinion and Communication. 2d ed. New York: Free Press, 1966.
Lua MLA (8ú heag.)Berelson, Bernard, agus Morris Janowitz. Reader in Public Opinion and Communication. 2d ed. Free Press, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.