National Research Council (U.S.). Highway Research Board. (1951). Highways with a narrow median: Presented at the Thirtieth Annual Meeting, 1951. Highway Research Board.
Citação do estilo Chicago (17ª ed.)National Research Council (U.S.). Highway Research Board. Highways with a Narrow Median: Presented at the Thirtieth Annual Meeting, 1951. Washington, D.C: Highway Research Board, 1951.
Citação MLA (9ª ed.)National Research Council (U.S.). Highway Research Board. Highways with a Narrow Median: Presented at the Thirtieth Annual Meeting, 1951. Highway Research Board, 1951.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.