Longenecker. Gettysburg Religion. Fordham University Press.
Lua i Stíl Chicago (17ú heag.)Longenecker. Gettysburg Religion. Fordham University Press.
Lua MLA (9ú heag.)Longenecker. Gettysburg Religion. Fordham University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.