United States. Federal Transit Administration, Transit Cooperative Research Program, Transit Development Corporation, National Research Council (U.S.). Transportation Research Board, Sun, J., Garcia, G., . . . Read, D. (2004). Track-related research. Transportation Research Board.
Cita Chicago (17th ed.)United States. Federal Transit Administration, Transit Cooperative Research Program, Transit Development Corporation, National Research Council (U.S.). Transportation Research Board, Jian Sun, Gregory Garcia, Semih Kalay, i David Read. Track-related Research. Washington, D.C: Transportation Research Board, 2004.
Cita MLA (9th ed.)United States. Federal Transit Administration, et al. Track-related Research. Transportation Research Board, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.