International Union of Public Transport. International Congress. (1987). 47th International Congress, Lausanne, 1987. International Union of Public Transport.
Citace podle Chicago (17th ed.)International Union of Public Transport. International Congress. 47th International Congress, Lausanne, 1987. Brussels: International Union of Public Transport, 1987.
Citace podle MLA (8th ed.)International Union of Public Transport. International Congress. 47th International Congress, Lausanne, 1987. International Union of Public Transport, 1987.
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