Traffic control and driver information 11 reports.

Traffic control and driver information 11 reports.

Xehetasun bibliografikoak
Erakunde egilea: National Research Council (U.S.). Highway Research Board
Formatua: Liburua
Hizkuntza:English
Argitaratua: Washington, D.C. Highway Research Board, Division of Engineering, National Research Council 1971.
Saila:Highway research record no. 366.
Gaiak:
Traffic engineering.
Traffic signs and signals.