Lyon, L. S. (1913). Elements of debating: A manual for use in high schools and academies. The University of Chicago press.
Lua i Stíl Chicago (17ú heag.)Lyon, Leverett S. Elements of Debating: A Manual for Use in High Schools and Academies. Chicago, Ill.: The University of Chicago press, 1913.
Lua MLA (8ú heag.)Lyon, Leverett S. Elements of Debating: A Manual for Use in High Schools and Academies. The University of Chicago press, 1913.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.