Não informado. (2002). Rural America. U.S. Department of Agriculture, Economic Research Service.
Lua i Stíl Chicago (17ú heag.)Não informado. Rural America. Washington: U.S. Department of Agriculture, Economic Research Service, 2002.
Lua MLA (8ú heag.)Não informado. Rural America. U.S. Department of Agriculture, Economic Research Service, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.