Traffic signals and signs : 5 reports
Annual meeting. Highway Research Board ; 49 ; 1970 ; Washington, DC Annual meeting. Highway Research Board ; 49 (Washington, DC) : 1970.
Highway research record ; 325
1970
61 S.
Ill.
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Conference Proceedings
English
DDC: | 388.3122 |
Engineering Index Backfile | 1928
|Traffic signs, signals and markers
Engineering Index Backfile | 1930
|Street traffic signs, signals and markings
Engineering Index Backfile | 1929
Traffic signs, signals and pavement markings
Engineering Index Backfile | 1931
|Uniformity in traffic signs and signals for highways
Engineering Index Backfile | 1932
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