Não informado. (1974). Directory. Transportation Research Board, National Research Council.
Lua i Stíl Chicago (17ú heag.)Não informado. Directory. Washington: Transportation Research Board, National Research Council, 1974.
Lua MLA (8ú heag.)Não informado. Directory. Transportation Research Board, National Research Council, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.