Crouch. Lost Letters of Medieval Life. University of Pennsylvania Press.
Lua i Stíl Chicago (17ú heag.)Crouch. Lost Letters of Medieval Life. University of Pennsylvania Press.
Lua MLA (9ú heag.)Crouch. Lost Letters of Medieval Life. University of Pennsylvania Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.