Não informado. (1922). American highways. American Association of Highway Officials.
Lua i Stíl Chicago (17ú heag.)Não informado. American Highways. Washington: American Association of Highway Officials, 1922.
Lua MLA (8ú heag.)Não informado. American Highways. American Association of Highway Officials, 1922.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.