Lewis R. W. B. & Lewis, N. (1999). American characters: Selections from the national portrait gallery, accompanied by literary portraits. Yale University Press.
Chicago-referens (17:e uppl.)Lewis R. W. B. och Nancy Lewis. American Characters: Selections from the National Portrait Gallery, Accompanied by Literary Portraits. New Haven: Yale University Press, 1999.
MLA-referens (9:e uppl.)Lewis R. W. B. och Nancy Lewis. American Characters: Selections from the National Portrait Gallery, Accompanied by Literary Portraits. Yale University Press, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.