Não informado. (1902). Forestry Quarterly. Society of American Foresters.
Lua i Stíl Chicago (17ú heag.)Não informado. Forestry Quarterly. Washington: Society of American Foresters, 1902.
Lua MLA (8ú heag.)Não informado. Forestry Quarterly. Society of American Foresters, 1902.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.