Não informado. (1891). Circular. U.S. Department of Agriculture.
Lua i Stíl Chicago (17ú heag.)Não informado. Circular. Washington: U.S. Department of Agriculture, 1891.
Lua MLA (8ú heag.)Não informado. Circular. U.S. Department of Agriculture, 1891.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.