Crump, G. C., & Jacob, E. F. The legacy of the Middle Ages. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Crump, G. C., agus E. F. Jacob. The Legacy of the Middle Ages. London: Oxford University Press.
Lua MLA (8ú heag.)Crump, G. C., agus E. F. Jacob. The Legacy of the Middle Ages. Oxford University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.