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Citace podle Chicago (17th ed.)National Research Council (U.S.). Transportation Research Board. Nonmotorized Transportation Research and Issues: Operations and Safety; Planning and Administration. Washington, D.C: National Academy Press, 1993.
Citace podle MLA (9th ed.)National Research Council (U.S.). Transportation Research Board. Nonmotorized Transportation Research and Issues: Operations and Safety; Planning and Administration. National Academy Press, 1993.
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