(1974). The Official railway guide (North American freight service ed.). National Railway Publication Co..
Lua i Stíl Chicago (17ú heag.)The Official Railway Guide. North American freight service ed. New York, N.Y.: National Railway Publication Co., 1974.
Lua MLA (8ú heag.)The Official Railway Guide. North American freight service ed. National Railway Publication Co., 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.