National Research Council (U.S.). Transportation Research Board. Committee on Pedestrians. (1988). Research problem statements: Pedestrians. Transportation Research Board, National Research Council.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Research Council (U.S.). Transportation Research Board. Committee on Pedestrians. Research Problem Statements: Pedestrians. Washington, D.C: Transportation Research Board, National Research Council, 1988.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNational Research Council (U.S.). Transportation Research Board. Committee on Pedestrians. Research Problem Statements: Pedestrians. Transportation Research Board, National Research Council, 1988.
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