Highway safety, design and operations -- research and development : hearing before the Subcommittee on Investigations and Oversight of the Committee on Public Works and Transportation, House of Representatives, one hundredth Congress, second session, June 29, 1988, at Penn State University, University Park, PA.
United States.Congress.House.Committee on Public Works and Transportation.Subcommittee on Investigations and Oversight.
Washington : U.S.G.P.O.,
1988.
(100-65)
Roads
Roads