National Research Council (U.S.). Transportation Research Board & National Research Council (U.S.). Transportation Research Board. Meeting. (2003). Transit: Rail transit, commuter rail, light rail transit, major activity center circulation systems, new technology, and maintenance. Transportation Research Board.
Lua i Stíl Chicago (17ú heag.)National Research Council (U.S.). Transportation Research Board agus National Research Council (U.S.). Transportation Research Board. Meeting. Transit: Rail Transit, Commuter Rail, Light Rail Transit, Major Activity Center Circulation Systems, New Technology, and Maintenance. Washington, D.C: Transportation Research Board, 2003.
Lua MLA (9ú heag.)National Research Council (U.S.). Transportation Research Board agus National Research Council (U.S.). Transportation Research Board. Meeting. Transit: Rail Transit, Commuter Rail, Light Rail Transit, Major Activity Center Circulation Systems, New Technology, and Maintenance. Transportation Research Board, 2003.