Federal Highway Administration, Offices of Research & Development1978.<NC23-223>
National Diet Library
U.S. Federal Highway Administration, Offices of Research & Development, Traffic Systems Division1981.<NC21-99>
National Diet Library
Federal Highway Administration, Offices of Research & Development1977.<NA141-102>
National Diet Library
Federal Highway Administration, Offices of Research & Development1977.<DK48-52>
National Diet Library
U.S. Federal Highway Administration, Offices of Research & Development, Traffic Systems Division1980.<NC21-110>
National Diet Library
Federal Highway Administration, Offices of Research & Development.1976.<M236-27>
National Diet Library
Federal Highway Administration, Offices of Research & Development, Environmental Division1981]<DK35-134>
National Diet Library
Federal Highway Administration, Offices of Research & Development1979.<NA151-48>
National Diet Library
Federal Highway Administration, Offices of Research & Development1979.<NC41-3>
National Diet Library
Federal Highway Administration, Offices of Research & Development1979.<NC21-57>
National Diet Library
Dept. of Transportation, Federal Highway Administration, Offices of Research & Development1978.<NA141-165>
National Diet Library
Federal Highway Administration, Offices of Research & Development1979.<NC21-123>
National Diet Library
Federal Highway Administration, Offices of Research & Development1975.<NC21-22>
National Diet Library
Federal Highway Administration, Offices of Research & Development1975.<NC21-41>
National Diet Library
Federal Highway Administration, Offices of Research & Development1978.<DK23-59>
National Diet Library
Federal Highway Administration, Offices of Research & Development, Materials Division1980.<NA141-201>
National Diet Library
Federal Highway Administration, Offices of Research & Development, Environmental Division1980]<NC21-116>
National Diet Library
Federal Highway Administration, Offices of Research & Development1974.<NA31-33>
National Diet Library
Federal Highway Administration, Offices of Research & Development, Structures and Applied Mechanics Division1981]<NA141-197>
National Diet Library
Federal Highway Administration, Offices of Research & Development1979.<DK41-9>
National Diet Library