Route guidance 5 reports.

Route guidance 5 reports.

Manylion Llyfryddiaeth
Awduron Corfforaethol: National Research Council (U.S.). Highway Research Board, National Research Council (U.S.). Highway Research Board. Special Committee on Electronic Research in the Highway Field, National Research Council (U.S.). Highway Research Board. Committee on Traffic Control Devices
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: Washington, D.C. Highway Research Board, National Research Council 1968.
Cyfres:Publication (National Research Council (U.S.)) no. 1642.
Highway research record no. 265.
Pynciau:
Traffic signs and signals.
Highway communications.
Automobiles > Electronic equipment.