Withington, A. F. (1991). Toward a more perfect union: Virtue and the formation of American republics. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Withington, Ann Fairfax. Toward a More Perfect Union: Virtue and the Formation of American Republics. New York ; Toronto: Oxford University Press, 1991.
Lua MLA (9ú heag.)Withington, Ann Fairfax. Toward a More Perfect Union: Virtue and the Formation of American Republics. Oxford University Press, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.