Lua APA (7ú heag.)
Ellis, R. E. (1987). The Union at risk: Jacksonian democracy, states' rights, and the nullification crisis. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)
Ellis, Richard E. The Union at Risk: Jacksonian Democracy, States' Rights, and the Nullification Crisis. New York: Oxford University Press, 1987.
Lua MLA (9ú heag.)
Ellis, Richard E. The Union at Risk: Jacksonian Democracy, States' Rights, and the Nullification Crisis. Oxford University Press, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.