Não informado. (1968). Bulletin of the Geological Society of Finland. Geological Society of Finland.
Lua i Stíl Chicago (17ú heag.)Não informado. Bulletin of the Geological Society of Finland. Helsinki: Geological Society of Finland, 1968.
Lua MLA (8ú heag.)Não informado. Bulletin of the Geological Society of Finland. Geological Society of Finland, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.