Não informado. (1974). Special report. National Research Council, Transportation Research Board.
Chicagoスタイル(17版)引用形式Não informado. Special Report. Washington: National Research Council, Transportation Research Board, 1974.
MLA(8版)引用形式Não informado. Special Report. National Research Council, Transportation Research Board, 1974.
警告: この引用は必ずしも正確ではありません.