Research problem statements operation, safety and maintenance of transportation facilities.

Xehetasun bibliografikoak
Erakunde egilea:	National Research Council (U.S.). Transportation Research Board
Formatua:	Liburua
Hizkuntza:	ingelesa
Argitaratua:	Washington, D.C. Transportation Research Board, National Research Council [1990]
Saila:	Transportation Research Circular Number 364
Gaiak:	Highway engineering > Research. Buses > Maintenance and repair > Research. Road machinery > Maintenance and repair > Research. Pavements > Maintenance and repair > Research.