Não informado. (2022). Tree Planters' Notes. U.S. Department of Agriculture, Forest Service.
Lua i Stíl Chicago (17ú heag.)Não informado. Tree Planters' Notes. Washington: U.S. Department of Agriculture, Forest Service, 2022.
Lua MLA (8ú heag.)Não informado. Tree Planters' Notes. U.S. Department of Agriculture, Forest Service, 2022.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.