Não informado. (2004). Transportation Research News. National Research Council, Transportation Research Board.
Lua i Stíl Chicago (17ú heag.)Não informado. Transportation Research News. Washington: National Research Council, Transportation Research Board, 2004.
Lua MLA (8ú heag.)Não informado. Transportation Research News. National Research Council, Transportation Research Board, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.