Zarefsky, D. (2017). Public speaking: Strategies for success (Eighth edition.). Pearson.
Lua i Stíl Chicago (17ú heag.)Zarefsky, David. Public Speaking: Strategies for Success. Eighth edition. New York, NY: Pearson, 2017.
Lua MLA (9ú heag.)Zarefsky, David. Public Speaking: Strategies for Success. Eighth edition. Pearson, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.