Traffic signals 5 reports ; prepared for the 52nd annual meeting.

Traffic signals 5 reports ; prepared for the 52nd annual meeting.

Bibliografski detalji
Autor kompanije: National Research Council (U.S.). Highway Research Board
Format: Knjiga
Jezik:English
Izdano: Washington, D.C. Highway Research Board, National Research Council 1973.
Serija:Highway research record no. 445.
Teme:
Traffic signs and signals.
Electronic traffic controls.