Freight data requirements for statewide transportation systems planning.

Bibliográfalaš dieđut
Materiálatiipa:	Girji
Giella:	eaŋgalasgiella
Almmustuhtton:	Washington Transportation Research Board, National Research Council 1977.
Ráidu:	National Cooperative Transit Research & Development Program : Research Results Digest Number 92.
Fáttát:	Freight and freightage > United States > Data processing. Freight and freightage > United States > Mathematical models. Transportation planning > United States.