Não informado. (1946). Bulletin. National Research Council, Highway Research Board.
Lua i Stíl Chicago (17ú heag.)Não informado. Bulletin. Washington: National Research Council, Highway Research Board, 1946.
Lua MLA (8ú heag.)Não informado. Bulletin. National Research Council, Highway Research Board, 1946.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.