Beebe, S. A., & Beebe, S. J. (2015). Public speaking: An audience-centered approach (Ninth edition.). Pearson.
Lua i Stíl Chicago (17ú heag.)Beebe, Steven A., agus Susan J. Beebe. Public Speaking: An Audience-centered Approach. Ninth edition. Boston: Pearson, 2015.
Lua MLA (9ú heag.)Beebe, Steven A., agus Susan J. Beebe. Public Speaking: An Audience-centered Approach. Ninth edition. Pearson, 2015.
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