Não informado. (1963). Highway research record. National Research Council, Highway Research Board.
Lua i Stíl Chicago (17ú heag.)Não informado. Highway Research Record. Washington: National Research Council, Highway Research Board, 1963.
Lua MLA (8ú heag.)Não informado. Highway Research Record. National Research Council, Highway Research Board, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.