National Research Council (U.S.). Transportation Research Board & National Research Council (U.S.). Transportation Research Board. Meeting. (2003). Railroad research: Intercity passenger transportation, track design and maintenance, and hazardous materials transport. Transportation Research Board.
Παραπομπή σε μορφή Chicago (17η εκδ.)National Research Council (U.S.). Transportation Research Board και National Research Council (U.S.). Transportation Research Board. Meeting. Railroad Research: Intercity Passenger Transportation, Track Design and Maintenance, and Hazardous Materials Transport. Washington, D.C: Transportation Research Board, 2003.
Παραπομπή σε μορφή MLA (9th εκδ.)National Research Council (U.S.). Transportation Research Board και National Research Council (U.S.). Transportation Research Board. Meeting. Railroad Research: Intercity Passenger Transportation, Track Design and Maintenance, and Hazardous Materials Transport. Transportation Research Board, 2003.