National Research Council (U.S.). Transportation Research Board. Committee on Visibility & Symposium on Conspicuity on the Highway. (1981). Conspicuity on the highway: A symposium. Transportation Research Board, National Academy of Sciences.
Cita Chicago Style (17a ed.)National Research Council (U.S.). Transportation Research Board. Committee on Visibility y Symposium on Conspicuity on the Highway. Conspicuity on the Highway: A Symposium. Washington, D.C: Transportation Research Board, National Academy of Sciences, 1981.
Cita MLA (9a ed.)National Research Council (U.S.). Transportation Research Board. Committee on Visibility y Symposium on Conspicuity on the Highway. Conspicuity on the Highway: A Symposium. Transportation Research Board, National Academy of Sciences, 1981.