National Research Council (U.S.). Highway Research Board. (1974). Interactive graphics and transportation system planning: 7 reports prepared for the 53rd Annual Meeting of the Highway Research Board. Transportation Research Board, National Research Council.
Chicago-referens (17:e uppl.)National Research Council (U.S.). Highway Research Board. Interactive Graphics and Transportation System Planning: 7 Reports Prepared for the 53rd Annual Meeting of the Highway Research Board. Washington: Transportation Research Board, National Research Council, 1974.
MLA-referens (9:e uppl.)National Research Council (U.S.). Highway Research Board. Interactive Graphics and Transportation System Planning: 7 Reports Prepared for the 53rd Annual Meeting of the Highway Research Board. Transportation Research Board, National Research Council, 1974.