Schallaböck, K. O. (1999). Traffic congestion in Europe: Report of the 110th round table on transport economics, 12th - 13th March 1998 ([1st ed.].). ECMT.
Citácia podle Chicago (17th ed.)Schallaböck, Karl Otto. Traffic Congestion in Europe: Report of the 110th Round Table on Transport Economics, 12th - 13th March 1998. [1st ed.]. Paris: ECMT, 1999.
Citácia podľa MLA (8th ed.)Schallaböck, Karl Otto. Traffic Congestion in Europe: Report of the 110th Round Table on Transport Economics, 12th - 13th March 1998. [1st ed.]. ECMT, 1999.
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