National Research Council (U.S.). Transportation Research Board. Committee on Operational Effects of Geometrics. (1982). Research problem statements: Operational effects of geometrics. Transportation Research Board, National Academy of Sciences.
Cita Chicago (17th ed.)National Research Council (U.S.). Transportation Research Board. Committee on Operational Effects of Geometrics. Research Problem Statements: Operational Effects of Geometrics. Washington, DC: Transportation Research Board, National Academy of Sciences, 1982.
Cita MLA (9th ed.)National Research Council (U.S.). Transportation Research Board. Committee on Operational Effects of Geometrics. Research Problem Statements: Operational Effects of Geometrics. Transportation Research Board, National Academy of Sciences, 1982.