American engineer and railroad journal. M.N. Forney.
Lua i Stíl Chicago (17ú heag.)American Engineer and Railroad Journal. New York: M.N. Forney.
Lua MLA (8ú heag.)American Engineer and Railroad Journal. M.N. Forney.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.