Não informado. (2000). Trees magazine. National Arborist Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Trees Magazine. Santa Monica, Calif: National Arborist Association, 2000.
Lua MLA (8ú heag.)Não informado. Trees Magazine. National Arborist Association, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.