Effects of traffic control devices presented at the 38th annual meeting, January 5-9, 1959.

Effects of traffic control devices presented at the 38th annual meeting, January 5-9, 1959.

Chi tiết về thư mục
Tác giả của công ty: National Research Council (U.S.). Highway Research Board
Định dạng: Sách
Ngôn ngữ:English
Được phát hành: Washington, D.C. National Academy of Science - National Research Council 1960.
Loạt:Publication (National Research Council (U.S.)) 730.
Bulletin (National Research Council (U.S.). Highway Research Board) 244.
Những chủ đề:
Traffic signs and signals.