Weiss, D. H. (1987). How to make an effective speech or presentation. Amacom.
Lua i Stíl Chicago (17ú heag.)Weiss, Donald H. How to Make an Effective Speech or Presentation. New York, N.Y.: Amacom, 1987.
Lua MLA (9ú heag.)Weiss, Donald H. How to Make an Effective Speech or Presentation. Amacom, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.