Não informado. (1972). Environmental Geology Report. Bureau of Topographic and Geologic Survey.
Lua i Stíl Chicago (17ú heag.)Não informado. Environmental Geology Report. Harrisburg, Pa: Bureau of Topographic and Geologic Survey, 1972.
Lua MLA (8ú heag.)Não informado. Environmental Geology Report. Bureau of Topographic and Geologic Survey, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.