Research problem statements on user information systems.

Opis bibliograficzny
Korporacja:	National Research Council (U.S.). Transportation Research Board
Format:	Książka
Język:	angielski
Wydane:	Washington, D.C. Transportation Research Board, National Research Council [1988]
Seria:	Transportation Research Circular Number 336
Hasła przedmiotowe:	Traffic signs and signals > Research. Highway communications > Research. Traffic engineering > Research.