Traffic research problem statements presented at the 31st annual meeting, January 14-18, 1952.

Traffic research problem statements presented at the 31st annual meeting, January 14-18, 1952.

מידע ביבליוגרפי
מחבר תאגידי: National Research Council (U.S.). Highway Research Board
פורמט: ספר
שפה:English
יצא לאור: Washington, D.C. Highway Research Board 1952.
נושאים:
Traffic regulations > Congresses.