Minnis, A., & Johnson, I. (2005). The Middle Ages (1. publ.). Cambridge Univ. Press.
Lua i Stíl Chicago (17ú heag.)Minnis, Alastair, agus Ian Johnson. The Middle Ages. 1. publ. Cambridge [u.a.]: Cambridge Univ. Press, 2005.
Lua MLA (8ú heag.)Minnis, Alastair, agus Ian Johnson. The Middle Ages. 1. publ. Cambridge Univ. Press, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.