Não informado. (1914). Bulletin of the Minnesota Geological Survey. University of Minnesota.
Lua i Stíl Chicago (17ú heag.)Não informado. Bulletin of the Minnesota Geological Survey. Minneapolis, Minn: University of Minnesota, 1914.
Lua MLA (8ú heag.)Não informado. Bulletin of the Minnesota Geological Survey. University of Minnesota, 1914.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.