Cita APA (7th ed.)

Coopman, S. J., & Lull, J. (2015). Public speaking: The evolving art (Third edition.). Cengage Learning.

Cita Chicago (17th ed.)

Coopman, Stephanie J., i James Lull. Public Speaking: The Evolving Art. Third edition. Stamford, Connecticut: Cengage Learning, 2015.

Cita MLA (9th ed.)

Coopman, Stephanie J., i James Lull. Public Speaking: The Evolving Art. Third edition. Cengage Learning, 2015.