Dyfyniad APA

National Research Council (U.S.). Transportation Research Board & National Research Council (U.S.). Transportation Research Board. Meeting. (2005). Travel demand 2005. Transportation Research Board.

Dyfyniad Arddull Chicago

National Research Council (U.S.). Transportation Research Board and National Research Council (U.S.). Transportation Research Board. Meeting. Travel Demand 2005. Washington, D.C: Transportation Research Board, 2005.

Dyfyniad MLA

National Research Council (U.S.). Transportation Research Board and National Research Council (U.S.). Transportation Research Board. Meeting. Travel Demand 2005. Transportation Research Board, 2005.

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