Não informado. (1953). Proceedings of the Geological Society of London. Geological Society of London.
Lua i Stíl Chicago (17ú heag.)Não informado. Proceedings of the Geological Society of London. London: Geological Society of London, 1953.
Lua MLA (8ú heag.)Não informado. Proceedings of the Geological Society of London. Geological Society of London, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.