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.

Bibliographic Details
Corporate Author: National Research Council (U.S.). Highway Research Board
Format: Book
Language:English
Published: Washington, D.C. Highway Research Board 1952.
Subjects:
Traffic regulations > Congresses.