por E.U.A. National Research Council. Highway Research Board.
por Michie, Jarvis D | Calcote, Lee R., coaut | E.U.A. National Research Council. Highway Research Board.
por National Research Council. Highway Research Board (E.U.A.).
por Deleys, Norman J | Mc Henry, Raymond R., coaut | E.U.A. National Research Council. Highway Research Board.
por Michie, J.D | Bronstad, M.D., coaut | E.U.A. National Research Council. Highway Research Board.
por National Research Council. Transportation Research Board (E-.U.A.).
por Olson, Robert M | Post, Edward R., coaut | E.U.A. National Research Council. Highway Research Board.