Maintenance research problem statements.

Manylion Llyfryddiaeth
Awdur Corfforaethol:	National Research Council (U.S.). Transportation Research Board
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Washington, D.C. Transportation Research Board [1992]
Cyfres:	Transportation research circular no. 401 (Dec. 1992) Transportation Research Circular Number 401
Pynciau:	Pavements > Maintenance and repair > Management. Pavements > Maintenance and repair > Management > Data processing. Pavements > Maintenance and repair > Management > Research.