Adams, B., & Shone, i. R. (1990). Castelos medievais. Edinter.
Lua i Stíl Chicago (17ú heag.)Adams, Brian, agus il. Rob Shone. Castelos Medievais. Edinter, 1990.
Lua MLA (8ú heag.)Adams, Brian, agus il. Rob Shone. Castelos Medievais. Edinter, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.