por Dunnicliff, John | National Research Council. Transportation Research Board (E-.U.A.).
por Dunnicliff, John [autor] | Green, Gordon E [autor].
por Dunnicliff, John [autor] | Gree, Gordon E [colaborador].
por Peck, Ralph B. (Ralph Brazelton) [autor] | Deere, Don U [editor] | Dunnicliff, John [editor] | Hanson, Walter E [colaborador] | Ireland, Herbert O [colaborador].