Lua APA (7ú heag.)

Diggs-Brown, B. (2007). The PR Style Guide formats for public relations practiceBarbara Diggs-Brown. Thomson Wadsworth.

Lua i Stíl Chicago (17ú heag.)

Diggs-Brown, Barbara. The PR Style Guide Formats for Public Relations PracticeBarbara Diggs-Brown. Thomson Wadsworth, 2007.

Lua MLA (8ú heag.)

Diggs-Brown, Barbara. The PR Style Guide Formats for Public Relations PracticeBarbara Diggs-Brown. Thomson Wadsworth, 2007.

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