National Research Council (U.S.). Transportation Research Board. Committee on Traffic Signal Systems & May, A. D. (1984). Developments in traffic signal systems: Summary of papers. Transportation Research Board, National Research Council.
Chicago-Zitierstil (17. Ausg.)National Research Council (U.S.). Transportation Research Board. Committee on Traffic Signal Systems und Adolf D. May. Developments in Traffic Signal Systems: Summary of Papers. Washington, D.C: Transportation Research Board, National Research Council, 1984.
MLA-Zitierstil (9. Ausg.)National Research Council (U.S.). Transportation Research Board. Committee on Traffic Signal Systems und Adolf D. May. Developments in Traffic Signal Systems: Summary of Papers. Transportation Research Board, National Research Council, 1984.