Gray, G. W., & Braden, W. W. (1963). Public speaking: Principles and practice (2nd ed.). Harper & Row.
Lua i Stíl Chicago (17ú heag.)Gray, Giles Wilkeson, agus Waldo W. Braden. Public Speaking: Principles and Practice. 2nd ed. New York: Harper & Row, 1963.
Lua MLA (9ú heag.)Gray, Giles Wilkeson, agus Waldo W. Braden. Public Speaking: Principles and Practice. 2nd ed. Harper & Row, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.