Lua APA (7ú heag.)

Zarefsky, D. (2008). Public speaking: Strategies for success (5th ed.). Allyn & Bacon.

Lua i Stíl Chicago (17ú heag.)

Zarefsky, David. Public Speaking: Strategies for Success. 5th ed. Boston: Allyn & Bacon, 2008.

Lua MLA (9ú heag.)

Zarefsky, David. Public Speaking: Strategies for Success. 5th ed. Allyn & Bacon, 2008.

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