Oberg, B. (2004). An introduction to public speaking.
Lua i Stíl Chicago (17ú heag.)Oberg, Brent. An Introduction to Public Speaking. Mumbai, 2004.
Lua MLA (9ú heag.)Oberg, Brent. An Introduction to Public Speaking. 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.