National Research Council (U.S.). Transportation Research Board. Committee on Energy Conservation and Transportation Demand. (1987). Research priorities in transportation and energy: A circular. Transportation Research Board, National Research Council.
Chicago-viite (17. p.)National Research Council (U.S.). Transportation Research Board. Committee on Energy Conservation and Transportation Demand. Research Priorities in Transportation and Energy: A Circular. Washington, D.C: Transportation Research Board, National Research Council, 1987.
MLA-viite (9. p.)National Research Council (U.S.). Transportation Research Board. Committee on Energy Conservation and Transportation Demand. Research Priorities in Transportation and Energy: A Circular. Transportation Research Board, National Research Council, 1987.