National Research Council (U.S.) Transportation Research Board. (2003). Freight capacity for the 21st century. Transportation Research Board.
Chicago-Zitierstil (17. Ausg.)National Research Council (U.S.) Transportation Research Board. Freight Capacity for the 21st Century. Washington, DC: Transportation Research Board, 2003.
MLA-Zitierstil (9. Ausg.)National Research Council (U.S.) Transportation Research Board. Freight Capacity for the 21st Century. Transportation Research Board, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.