National Research Council (U.S.). Transportation Research Board. Committee on Pedestrians. (1988). Research problem statements: Pedestrians. Transportation Research Board, National Research Council.
Cita Chicago Style (17a ed.)National Research Council (U.S.). Transportation Research Board. Committee on Pedestrians. Research Problem Statements: Pedestrians. Washington, D.C: Transportation Research Board, National Research Council, 1988.
Cita MLA (9a ed.)National Research Council (U.S.). Transportation Research Board. Committee on Pedestrians. Research Problem Statements: Pedestrians. Transportation Research Board, National Research Council, 1988.
Precaución: Estas citas no son 100% exactas.