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1
[Washington, D.C.?] : U.S. Dept. of Transportation, Federal Highway Administration, 1981

Government Document Serial
2
[Washington, D.C.] :; Washington, D.C. : Highway Research Board, National Research Council, National Academy of Sciences-National Academy of Engineering,; Transportation Research Board 1968

Serial
3
Washington : U.S. G.P.O., 1918

Government Document Journal
4

Government Document Journal