Não informado. (1970). Rail International. International Railway Congress Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Rail International. Brussels: International Railway Congress Association, 1970.
Lua MLA (8ú heag.)Não informado. Rail International. International Railway Congress Association, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.