MacDougall, C. D. (1952). Understanding public opinion: A guide for newspapermen and newspaper readers. Macmillan.
Chicago-viite (17. p.)MacDougall, Curtis Daniel. Understanding Public Opinion: A Guide for Newspapermen and Newspaper Readers. New York: Macmillan, 1952.
MLA-viite (9. p.)MacDougall, Curtis Daniel. Understanding Public Opinion: A Guide for Newspapermen and Newspaper Readers. Macmillan, 1952.
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