Não informado. US Forest Service Research Note PNW. U.S. Forest Service.
Lua i Stíl Chicago (17ú heag.)Não informado. US Forest Service Research Note PNW. Portland, Ore: U.S. Forest Service.
Lua MLA (8ú heag.)Não informado. US Forest Service Research Note PNW. U.S. Forest Service.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.