Cita APA

National Research Council (U.S.). Transportation Research Board. Committee on Pedestrians. (1988). Research problem statements: Pedestrians. Transportation Research Board, National Research Council.

Citación estilo Chicago

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

National Research Council (U.S.). Transportation Research Board. Committee on Pedestrians. Research Problem Statements: Pedestrians. Transportation Research Board, National Research Council, 1988.