Operational and maintenance problems with highway safety appurtenances.

Manylion Llyfryddiaeth
Awdur Corfforaethol: National Research Council (U.S.). Transportation Research Board. Committee on Safety Appurtenances
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: Washington, DC Transportation Research Board, National Academy of Sciences [1984]
Cyfres:Transportation Research Circular Number 279
Pynciau: