U.S. Federal Highway Administration]1978.<NC21-119>
国立国会図書館
U.S. Federal Highway Administration, Structures and Applied Mechanics Division1981.<NA141-216>
国立国会図書館
U.S. Federal Highway Administration, Environmental Design & Control Division1979.<DK48-83>
国立国会図書館
U.S. Federal Highway Administration, Offices of Research & Development, Traffic Systems Division1981.<NC21-99>
国立国会図書館
U.S. Federal Highway Administration, Region 15, Demonstration Projects Division1977, cover 1979.<NA141-252>
国立国会図書館
U.S. Federal Highway Administration, Region 15, Demonstration Projects Division1979.<NA141-249>
国立国会図書館
U.S. Federal Highway Administration, Region 15, Demonstration Projects Division1978, cover 1979.<NA141-259>
国立国会図書館
U.S. Federal Highway Administration, Region 15, Demonstration Projects Division1979.<NA141-250>
国立国会図書館
U.S. Federal Highway Administration, Region 15, Demonstration Projects Division1979.<NA141-248>
国立国会図書館
U.S. Federal Highway Administration, Offices of Research & Development, Traffic Systems Division1980.<NC21-110>
国立国会図書館
U.S. Federal Highway Administration, Region 15, Demonstration Projects Division1978.<NA141-246>
国立国会図書館
U.S. Federal Highway Administration1978.<EG325-72>
国立国会図書館
U.S. Federal Highway Administration1972.<DK35-35>
国立国会図書館
U.S. Federal Highway Administration, Offices of Research and Development[1976]<NA116-55>
国立国会図書館
U.S. Federal Highway Administration1970 [i.e. 1971]<NA141-21>
国立国会図書館
U.S. Federal Highway Administration1978.<DK121-12>
国立国会図書館
U.S. Federal Highway Administration Offices of Research and Development[1972]<DK31-13>
国立国会図書館
U.S. Federal Highway Administration; for sale by the Supt. of Docs., U.S. Govt. Print. Off.1970.<DK48-18>
国立国会図書館
U.S. Federal Highway Administration; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.]1970.<NC23-30>
国立国会図書館
U.S. Federal Highway Administration19uu.<DT693-25>
国立国会図書館