Não informado. (2004). Information Circular. Department of Natural Resources, Division of Geological Survey.
Lua i Stíl Chicago (17ú heag.)Não informado. Information Circular. Columbus, Ohio: Department of Natural Resources, Division of Geological Survey, 2004.
Lua MLA (8ú heag.)Não informado. Information Circular. Department of Natural Resources, Division of Geological Survey, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.