Manual on uniform traffic control devices for streets and highways.
| 共著者: | , |
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| フォーマット: | 図書 |
| 言語: | English |
| 出版事項: |
Washington]
Federal Highway Administration; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Washington], 1971.
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| 主題: |