Brigance, W. N. (1961). Speech: Its techniques and disciplines in a free society (2nd ed.). Appleton-Century-Crofts.
Lua i Stíl Chicago (17ú heag.)Brigance, William Norwood. Speech: Its Techniques and Disciplines in a Free Society. 2nd ed. New York: Appleton-Century-Crofts, 1961.
Lua MLA (9ú heag.)Brigance, William Norwood. Speech: Its Techniques and Disciplines in a Free Society. 2nd ed. Appleton-Century-Crofts, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.