Não informado. (1894). Bulletin. South Dakota Geological and Natural History Survey.
Lua i Stíl Chicago (17ú heag.)Não informado. Bulletin. Vermillion, SD: South Dakota Geological and Natural History Survey, 1894.
Lua MLA (8ú heag.)Não informado. Bulletin. South Dakota Geological and Natural History Survey, 1894.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
