Catton, B. (1956). The American Heritage: Selections from the magazine of History. Dell Publlishing Company.
Lua i Stíl Chicago (17ú heag.)Catton, Bruce. The American Heritage: Selections from the Magazine of History. New York: Dell Publlishing Company, 1956.
Lua MLA (9ú heag.)Catton, Bruce. The American Heritage: Selections from the Magazine of History. Dell Publlishing Company, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.