Berger, A. A. (2014). Media and communication research methods 3rd ed. SAGE.
Lua i Stíl Chicago (17ú heag.)Berger, Arthur Asa. Media and Communication Research Methods 3rd Ed. SAGE, 2014.
Lua MLA (8ú heag.)Berger, Arthur Asa. Media and Communication Research Methods 3rd Ed. SAGE, 2014.
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