Holt, J. C. (1965). Magna carta. University Press.
Lua i Stíl Chicago (17ú heag.)Holt, James Clarke. Magna Carta. Cambridge: University Press, 1965.
Lua MLA (9ú heag.)Holt, James Clarke. Magna Carta. University Press, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.