Não informado. (1996). Journal of Bridge Engineering. American Society of Civil Engineers.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Bridge Engineering. Reston, Va: American Society of Civil Engineers, 1996.
Lua MLA (8ú heag.)Não informado. Journal of Bridge Engineering. American Society of Civil Engineers, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.