Wagner, C. (1903). Courage. Dodd, Mead and co..
Lua i Stíl Chicago (17ú heag.)Wagner, Charles. Courage. New York: Dodd, Mead and co., 1903.
Lua MLA (8ú heag.)Wagner, Charles. Courage. Dodd, Mead and co., 1903.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.