Não informado. (1839). Memoirs of the Geological Survey of the United Kingdon. Institute of Geological Sciences.
Lua i Stíl Chicago (17ú heag.)Não informado. Memoirs of the Geological Survey of the United Kingdon. London: Institute of Geological Sciences, 1839.
Lua MLA (8ú heag.)Não informado. Memoirs of the Geological Survey of the United Kingdon. Institute of Geological Sciences, 1839.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.