(1984). Erie County Study, 1940 Paul F. Lazarsfeld, Bernard R. Berelson, Hazel Gaudet. [electronic resource].
Tohutoru Kātū Chicago (17th ed.)Erie County Study, 1940 Paul F. Lazarsfeld, Bernard R. Berelson, Hazel Gaudet. [electronic Resource]. 1984.
Tohutoro MLA (9th ed.)Erie County Study, 1940 Paul F. Lazarsfeld, Bernard R. Berelson, Hazel Gaudet. [electronic Resource]. 1984.
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