Cita APA (7th ed.)

Zarefsky, D. (2014). Public speaking: Strategies for success (Seventh edition.). Allyn & Bacon.

Cita Chicago (17th ed.)

Zarefsky, David. Public Speaking: Strategies for Success. Seventh edition. Boston: Allyn & Bacon, 2014.

Cita MLA (9th ed.)

Zarefsky, David. Public Speaking: Strategies for Success. Seventh edition. Allyn & Bacon, 2014.