Bivins, T. H. (2011). Public Relations Writing: The Essentials of Style and Format seventh edition. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Bivins, Thomas H. Public Relations Writing: The Essentials of Style and Format Seventh Edition. McGraw-Hill, 2011.
Lua MLA (8ú heag.)Bivins, Thomas H. Public Relations Writing: The Essentials of Style and Format Seventh Edition. McGraw-Hill, 2011.
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