National Research Council (U.S.). Transportation Research Board. (1992). Railroad issues. Transportation Research Board, National Research Council.
Chicago-Zitierstil (17. Ausg.)National Research Council (U.S.). Transportation Research Board. Railroad Issues. Washington, D.C: Transportation Research Board, National Research Council, 1992.
MLA-Zitierstil (9. Ausg.)National Research Council (U.S.). Transportation Research Board. Railroad Issues. Transportation Research Board, National Research Council, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.