Dyfyniad APA

National Research Council (U.S.). Transportation Research Board & National Research Council (U.S.). Transportation Research Board. Meeting. (2004). Transportation planning and analysis, 2004. Transportation Research Board.

Dyfyniad Arddull Chicago

National Research Council (U.S.). Transportation Research Board and National Research Council (U.S.). Transportation Research Board. Meeting. Transportation Planning and Analysis, 2004. Washington, D.C: Transportation Research Board, 2004.

Dyfyniad MLA

National Research Council (U.S.). Transportation Research Board and National Research Council (U.S.). Transportation Research Board. Meeting. Transportation Planning and Analysis, 2004. Transportation Research Board, 2004.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.