Continuing project to synthesize information on highway problems.

Continuing project to synthesize information on highway problems.

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Manylion Llyfryddiaeth
Awdur Corfforaethol: National Research Council (U.S.). Transportation Research Board
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: Washington, D.C. Transportation Research Board, National Research Council 1990.
Pynciau:
National Cooperative Highway Research Program.
Highway research > United States.