Não informado. (1910). Technologic Papers of the Bureau of Standards. U.S. Department of Commerce, National Bureau of Standards.
Lua i Stíl Chicago (17ú heag.)Não informado. Technologic Papers of the Bureau of Standards. Washington: U.S. Department of Commerce, National Bureau of Standards, 1910.
Lua MLA (8ú heag.)Não informado. Technologic Papers of the Bureau of Standards. U.S. Department of Commerce, National Bureau of Standards, 1910.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.