Siebert, F. S. (1956). Four theories of the press: The authoriatarian, libertarian, social responsibility, and Soviet communist concepts of what the press should be and do. University of Illinois Press.
Chicago Style (17th ed.) CitationSiebert, Frederick Seaton. Four Theories of the Press: The Authoriatarian, Libertarian, Social Responsibility, and Soviet Communist Concepts of What the Press Should Be and Do. Urbana: University of Illinois Press, 1956.
MLA citiranjeSiebert, Frederick Seaton. Four Theories of the Press: The Authoriatarian, Libertarian, Social Responsibility, and Soviet Communist Concepts of What the Press Should Be and Do. University of Illinois Press, 1956.
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