Isaacs, A., & Monk, J. (1986). The Cambridge illustrated dictionary of British heritage. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Isaacs, Alan, agus Jennifer Monk. The Cambridge Illustrated Dictionary of British Heritage. Cambridge [Cambridgeshire]: Cambridge University Press, 1986.
Lua MLA (9ú heag.)Isaacs, Alan, agus Jennifer Monk. The Cambridge Illustrated Dictionary of British Heritage. Cambridge University Press, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.