Markel, L. (1972). What you don't know can hurt you: A study of public opinion and public emotion. Public Affairs Press.
Chicago-viite (17. p.)Markel, Lester. What You Don't Know Can Hurt You: A Study of Public Opinion and Public Emotion. Washington: Public Affairs Press, 1972.
MLA-viite (9. p.)Markel, Lester. What You Don't Know Can Hurt You: A Study of Public Opinion and Public Emotion. Public Affairs Press, 1972.
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