Lewis R. W. B. & Lewis, N. (1999). American characters: Selections from the national portrait gallery, accompanied by literary portraits. Yale University Press.
Lua i Stíl Chicago (17ú heag.)Lewis R. W. B. agus Nancy Lewis. American Characters: Selections from the National Portrait Gallery, Accompanied by Literary Portraits. New Haven: Yale University Press, 1999.
Lua MLA (9ú heag.)Lewis R. W. B. agus Nancy Lewis. American Characters: Selections from the National Portrait Gallery, Accompanied by Literary Portraits. Yale University Press, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.