Theobald, T. (2013). Develop your presentation skills (Second edition.). Kogan Page Ltd.
Lua i Stíl Chicago (17ú heag.)Theobald, Theo. Develop Your Presentation Skills. Second edition. Philadelphia, PA: Kogan Page Ltd, 2013.
Lua MLA (9ú heag.)Theobald, Theo. Develop Your Presentation Skills. Second edition. Kogan Page Ltd, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.