Effects of traffic control devices presented at the 38th annual meeting, January 5-9, 1959.
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| 格式: | 图书 |
| 语言: | English |
| 出版: |
Washington, D.C.
National Academy of Science - National Research Council
1960.
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| 丛编: | Publication (National Research Council (U.S.))
730. Bulletin (National Research Council (U.S.). Highway Research Board) 244. |
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