National Research Council (U.S.). Transportation Research Board. (1979). Local rail services program: Perspectives of states and railroads. Transportation Research Board, National Academy of Sciences.
Lua i Stíl Chicago (17ú heag.)National Research Council (U.S.). Transportation Research Board. Local Rail Services Program: Perspectives of States and Railroads. Washington, D.C: Transportation Research Board, National Academy of Sciences, 1979.
Lua MLA (9ú heag.)National Research Council (U.S.). Transportation Research Board. Local Rail Services Program: Perspectives of States and Railroads. Transportation Research Board, National Academy of Sciences, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.