APA (7th ed.) Zitazioa

Humes, J. C. (2002). Speak like churchill, stand like lincoln: 21 powerful secrets of history's greatest speakers. AUWSF.

Chicago Style (17th ed.) Zitazioa

Humes, James C. Speak like Churchill, Stand like Lincoln: 21 Powerful Secrets of History's Greatest Speakers. New York: AUWSF, 2002.

MLA (9th ed.) Zitazioa

Humes, James C. Speak like Churchill, Stand like Lincoln: 21 Powerful Secrets of History's Greatest Speakers. AUWSF, 2002.