Não informado. American woods. U.S. Forest Service.
Lua i Stíl Chicago (17ú heag.)Não informado. American Woods. Washington: U.S. Forest Service.
Lua MLA (8ú heag.)Não informado. American Woods. U.S. Forest Service.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.