Não informado. (1974). American Highway and Transportation Monthly. American Association of State Highway and Transportation Officials.
Citace podle Chicago (17th ed.)Não informado. American Highway and Transportation Monthly. Washington: American Association of State Highway and Transportation Officials, 1974.
Citace podle MLA (8th ed.)Não informado. American Highway and Transportation Monthly. American Association of State Highway and Transportation Officials, 1974.
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