Coopman, S. J., & Lull, J. (2009). Public speaking: The evolving art. Wadsworth/Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Coopman, Stephanie J., agus James Lull. Public Speaking: The Evolving Art. Boston, Mass: Wadsworth/Cengage Learning, 2009.
Lua MLA (9ú heag.)Coopman, Stephanie J., agus James Lull. Public Speaking: The Evolving Art. Wadsworth/Cengage Learning, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.