Não informado. (1965). US Forest Service Resource Bulletin PSW. U.S. Forest Service.
Lua i Stíl Chicago (17ú heag.)Não informado. US Forest Service Resource Bulletin PSW. Berkeley, Calif: U.S. Forest Service, 1965.
Lua MLA (8ú heag.)Não informado. US Forest Service Resource Bulletin PSW. U.S. Forest Service, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.